diff --git a/ExpantaNum.js b/ExpantaNum.js
index 7e78adf..d56d1e7 100644
--- a/ExpantaNum.js
+++ b/ExpantaNum.js
@@ -694,6 +694,7 @@
     if (payload.neq(ExpantaNum.ONE)) other=other.add(payload.slog(t));
     if (ExpantaNum.debug>=ExpantaNum.NORMAL) console.log(t+"^^"+other);
     var negln;
+    if (t.isNaN()||other.isNaN()||payload.isNaN()) return ExpantaNum.NaN.clone()
     if (other.isInfinite()&&other.sign>0){
       if (t.gte(Math.exp(1/Math.E))) return ExpantaNum.POSITIVE_INFINITY.clone();
       //Formula for infinite height power tower.
@@ -893,7 +894,13 @@
       other=new ExpantaNum(other);
       var r;
       if (ExpantaNum.debug>=ExpantaNum.NORMAL) console.log(t+"{"+arrows+"}"+other);
+    if (t.isNaN()||other.isNaN()) return ExpantaNum.NaN.clone()
       if (other.lt(ExpantaNum.ZERO)) return ExpantaNum.NaN.clone();
+      if (t.eq(ExpantaNum.ZERO)){
+        if (other.eq(ExpantaNum.ONE)) return ExpantaNum.ZERO.clone();
+        return ExpantaNum.NaN.clone();
+      }
+      if (t.eq(ExpantaNum.ONE)) return ExpantaNum.ONE.clone();
       if (other.eq(ExpantaNum.ZERO)) return ExpantaNum.ONE.clone();
       if (other.eq(ExpantaNum.ONE)) return t.clone();
       if (arrows.gt(ExpantaNum.MAX_SAFE_INTEGER)){
diff --git a/ExpantaNum.min.js b/ExpantaNum.min.js
index 1244fea..3bdc4b3 100644
--- a/ExpantaNum.min.js
+++ b/ExpantaNum.min.js
@@ -1,2 +1,2 @@
 //Compressed with UglifyJS 3 https://skalman.github.io/UglifyJS-online/
-!function(r){"use strict";var e={maxOps:1e3,serializeMode:0,debug:0},t="[ExpantaNumError] ",n=t+"Invalid argument: ",a=/^[-\+]*(Infinity|NaN|(J+|J\^\d+ )?(10(\^+|\{[1-9]\d*\})|\(10(\^+|\{[1-9]\d*\})\)\^[1-9]\d* )*((\d+(\.\d*)?|\d*\.\d+)?([Ee][-\+]*))*(0|\d+(\.\d*)?|\d*\.\d+))$/,i=Math.log10(9007199254740991),o={},s={},u={ZERO:0,ONE:1};u.E=Math.E,u.LN2=Math.LN2,u.LN10=Math.LN10,u.LOG2E=Math.LOG2E,u.LOG10E=Math.LOG10E,u.PI=Math.PI,u.SQRT1_2=Math.SQRT1_2,u.SQRT2=Math.SQRT2,u.MAX_SAFE_INTEGER=9007199254740991,u.MIN_SAFE_INTEGER=Number.MIN_SAFE_INTEGER,u.NaN=Number.NaN,u.NEGATIVE_INFINITY=Number.NEGATIVE_INFINITY,u.POSITIVE_INFINITY=Number.POSITIVE_INFINITY,u.E_MAX_SAFE_INTEGER="e9007199254740991",u.EE_MAX_SAFE_INTEGER="ee9007199254740991",u.TETRATED_MAX_SAFE_INTEGER="10^^9007199254740991",u.GRAHAMS_NUMBER="J^63 10^^^(10^)^7625597484984 3638334640023.7783",o.absoluteValue=o.abs=function(){var r=this.clone();return r.sign=1,r},s.absoluteValue=s.abs=function(r){return new e(r).abs()},o.negate=o.neg=function(){var r=this.clone();return r.sign=-1*r.sign,r},s.negate=s.neg=function(r){return new e(r).neg()},o.compareTo=o.cmp=function(r){if(r instanceof e||(r=new e(r)),isNaN(this.array[0][1])||isNaN(r.array[0][1]))return NaN;if(this.array[0][1]==1/0&&r.array[0][1]!=1/0)return this.sign;if(this.array[0][1]!=1/0&&r.array[0][1]==1/0)return-r.sign;if(1==this.array.length&&0===this.array[0][1]&&1==r.array.length&&0===r.array[0][1])return 0;if(this.sign!=r.sign)return this.sign;var t,n=this.sign;if(this.layer>r.layer)t=1;else if(this.layer<r.layer)t=-1;else{for(var a,i,o=0,s=Math.min(this.array.length,r.array.length);o<s;++o){if(a=this.array[this.array.length-1-o],i=r.array[r.array.length-1-o],a[0]>i[0]||a[0]==i[0]&&a[1]>i[1]){t=1;break}if(a[0]<i[0]||a[0]==i[0]&&a[1]<i[1]){t=-1;break}}void 0===t&&(t=this.array.length==r.array.length?0:this.array.length>r.array.length?(a=this.array[this.array.length-s])[0]>=1||a[1]>10?1:-1:(a=r.array[r.array.length-s])[0]>=1||a[1]>10?-1:1)}return t*n},s.compare=s.cmp=function(r,t){return new e(r).cmp(t)},o.greaterThan=o.gt=function(r){return this.cmp(r)>0},s.greaterThan=s.gt=function(r,t){return new e(r).gt(t)},o.greaterThanOrEqualTo=o.gte=function(r){return this.cmp(r)>=0},s.greaterThanOrEqualTo=s.gte=function(r,t){return new e(r).gte(t)},o.lessThan=o.lt=function(r){return this.cmp(r)<0},s.lessThan=s.lt=function(r,t){return new e(r).lt(t)},o.lessThanOrEqualTo=o.lte=function(r){return this.cmp(r)<=0},s.lessThanOrEqualTo=s.lte=function(r,t){return new e(r).lte(t)},o.equalsTo=o.equal=o.eq=function(r){return 0===this.cmp(r)},s.equalsTo=s.equal=s.eq=function(r,t){return new e(r).eq(t)},o.notEqualsTo=o.notEqual=o.neq=function(r){return 0!==this.cmp(r)},s.notEqualsTo=s.notEqual=s.neq=function(r,t){return new e(r).neq(t)},o.minimum=o.min=function(r){return this.lt(r)?this.clone():new e(r)},s.minimum=s.min=function(r,t){return new e(r).min(t)},o.maximum=o.max=function(r){return this.gt(r)?this.clone():new e(r)},s.maximum=s.max=function(r,t){return new e(r).max(t)},o.isPositive=o.ispos=function(){return this.gt(e.ZERO)},s.isPositive=s.ispos=function(r){return new e(r).ispos()},o.isNegative=o.isneg=function(){return this.lt(e.ZERO)},s.isNegative=s.isneg=function(r){return new e(r).isneg()},o.isNaN=function(){return isNaN(this.array[0][1])},s.isNaN=function(r){return new e(r).isNaN()},o.isFinite=function(){return isFinite(this.array[0][1])},s.isFinite=function(r){return new e(r).isFinite()},o.isInfinite=function(){return this.array[0][1]==1/0},s.isInfinite=function(r){return new e(r).isInfinite()},o.isInteger=o.isint=function(){return-1==this.sign?this.abs().isint():!!this.gt(e.MAX_SAFE_INTEGER)||Number.isInteger(this.toNumber())},s.isInteger=s.isint=function(r){return new e(r).isint()},o.floor=function(){return this.isInteger()?this.clone():new e(Math.floor(this.toNumber()))},s.floor=function(r){return new e(r).floor()},o.ceiling=o.ceil=function(){return this.isInteger()?this.clone():new e(Math.ceil(this.toNumber()))},s.ceiling=s.ceil=function(r){return new e(r).ceil()},o.round=function(){return this.isInteger()?this.clone():new e(Math.round(this.toNumber()))},s.round=function(r){return new e(r).round()},o.plus=o.add=function(r){var t=this.clone();if(r=new e(r),e.debug>=e.NORMAL&&console.log(this+"+"+r),-1==t.sign)return t.neg().add(r.neg()).neg();if(-1==r.sign)return t.sub(r.neg());if(t.eq(e.ZERO))return r;if(r.eq(e.ZERO))return t;if(t.isNaN()||r.isNaN()||t.isInfinite()&&r.isInfinite()&&t.eq(r.neg()))return e.NaN.clone();if(t.isInfinite())return t;if(r.isInfinite())return r;var n,a=t.min(r),i=t.max(r),o=i.operator(0),s=i.operator(1);if(i.gt(e.E_MAX_SAFE_INTEGER)||i.div(a).gt(e.MAX_SAFE_INTEGER))n=i;else if(s){if(1==s){var u=a.operator(1)?a.operator(0):Math.log10(a.operator(0));n=new e([u+Math.log10(Math.pow(10,o-u)+1),1])}}else n=new e(t.toNumber()+r.toNumber());return a=i=null,n},s.plus=s.add=function(r,t){return new e(r).add(t)},o.minus=o.sub=function(r){var t=this.clone();if(r=new e(r),e.debug>=e.NORMAL&&console.log(t+"-"+r),-1==t.sign)return t.neg().sub(r.neg()).neg();if(-1==r.sign)return t.add(r.neg());if(t.eq(r))return e.ZERO.clone();if(r.eq(e.ZERO))return t;if(t.isNaN()||r.isNaN()||t.isInfinite()&&r.isInfinite())return e.NaN.clone();if(t.isInfinite())return t;if(r.isInfinite())return r.neg();var n,a=t.min(r),i=t.max(r),o=r.gt(t),s=i.operator(0),u=i.operator(1);if(i.gt(e.E_MAX_SAFE_INTEGER)||i.div(a).gt(e.MAX_SAFE_INTEGER))n=i,n=o?n.neg():n;else if(u){if(1==u){var f=a.operator(1)?a.operator(0):Math.log10(a.operator(0));n=new e([f+Math.log10(Math.pow(10,s-f)-1),1]),n=o?n.neg():n}}else n=new e(t.toNumber()-r.toNumber());return a=i=null,n},s.minus=s.sub=function(r,t){return new e(r).sub(t)},o.times=o.mul=function(r){var t=this.clone();if(r=new e(r),e.debug>=e.NORMAL&&console.log(t+"*"+r),t.sign*r.sign==-1)return t.abs().mul(r.abs()).neg();if(-1==t.sign)return t.abs().mul(r.abs());if(t.isNaN()||r.isNaN()||t.eq(e.ZERO)&&r.isInfinite()||t.isInfinite()&&r.abs().eq(e.ZERO))return e.NaN.clone();if(r.eq(e.ZERO))return e.ZERO.clone();if(r.eq(e.ONE))return t.clone();if(t.isInfinite())return t;if(r.isInfinite())return r;if(t.max(r).gt(e.EE_MAX_SAFE_INTEGER))return t.max(r);var n=t.toNumber()*r.toNumber();return n<=9007199254740991?new e(n):e.pow(10,t.log10().add(r.log10()))},s.times=s.mul=function(r,t){return new e(r).mul(t)},o.divide=o.div=function(r){var t=this.clone();if(r=new e(r),e.debug>=e.NORMAL&&console.log(t+"/"+r),t.sign*r.sign==-1)return t.abs().div(r.abs()).neg();if(-1==t.sign)return t.abs().div(r.abs());if(t.isNaN()||r.isNaN()||t.isInfinite()&&r.isInfinite()||t.eq(e.ZERO)&&r.eq(e.ZERO))return e.NaN.clone();if(r.eq(e.ZERO))return e.POSITIVE_INFINITY.clone();if(r.eq(e.ONE))return t.clone();if(t.eq(r))return e.ONE.clone();if(t.isInfinite())return t;if(r.isInfinite())return e.ZERO.clone();if(t.max(r).gt(e.EE_MAX_SAFE_INTEGER))return t.gt(r)?t.clone():e.ZERO.clone();var n=t.toNumber()/r.toNumber();if(n<=9007199254740991)return new e(n);var a=e.pow(10,t.log10().sub(r.log10())),i=a.floor();return a.sub(i).lt(new e(1e-9))?i:a},s.divide=s.div=function(r,t){return new e(r).div(t)},o.reciprocate=o.rec=function(){return e.debug>=e.NORMAL&&console.log(this+"^-1"),this.isNaN()||this.eq(e.ZERO)?e.NaN.clone():this.abs().gt("2e323")?e.ZERO.clone():new e(1/this)},s.reciprocate=s.rec=function(r){return new e(r).rec()},o.modular=o.mod=function(r){return(r=new e(r)).eq(e.ZERO)?e.ZERO.clone():this.sign*r.sign==-1?this.abs().mod(r.abs()).neg():-1==this.sign?this.abs().mod(r.abs()):this.sub(this.div(r).floor().mul(r))},s.modular=s.mod=function(r,t){return new e(r).mod(t)};o.gamma=function(){var r=this.clone();if(r.gt(e.TETRATED_MAX_SAFE_INTEGER))return r;if(r.gt(e.E_MAX_SAFE_INTEGER))return e.exp(r);if(r.gt(e.MAX_SAFE_INTEGER))return e.exp(e.mul(r,e.ln(r).sub(1)));var t=r.operator(0);if(t>1){if(t<24)return new e(function(r){if(!isFinite(r))return r;if(r<-50)return r==Math.trunc(r)?Number.NEGATIVE_INFINITY:0;for(var e=1;r<10;)e*=r,++r;var t=.9189385332046727;t+=(.5+(r-=1))*Math.log(r),t-=r;var n=r*r,a=r;return t+=1/(12*a),t+=1/(360*(a*=n)),t+=1/(1260*(a*=a*n)),t+=1/(1680*(a*=n)),t+=1/(1188*(a*=n)),t+=691/(360360*(a*=n)),t+=7/(1092*(a*=n)),t+=3617/(122400*(a*=n)),Math.exp(t)/e}(r.sign*t));var n=t-1,a=.9189385332046727;a+=(n+.5)*Math.log(n);var i=n*n,o=n,s=12*o,u=1/s,f=(a-=n)+u;if(f==a)return e.exp(a);if((f=(a=f)-(u=1/(s=360*(o*=i))))==a)return e.exp(a);a=f;var l=1/(s=1260*(o*=i));return a+=l,a-=l=1/(s=1680*(o*=i)),e.exp(a)}return this.rec()},s.gamma=function(r){return new 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e(t)).factorial()))},o.choose=function(r){return e.choose(this,r)},o.standardize=function(){var r,t=this;if(e.debug>=e.ALL&&console.log(t.toString()),t.array&&t.array.length||(t.array=[[0,0]]),1!=t.sign&&-1!=t.sign&&("number"!=typeof t.sign&&(t.sign=Number(t.sign)),t.sign=t.sign<0?-1:1),t.layer>9007199254740991)return t.array=[[0,1/0]],t.layer=0,t;for(var n=0;n<t.array.length;++n){var a=t.array[n];if(null!==a[0]&&void 0!==a[0]||(a[0]=0),0===a[0]||0!==a[1]&&null!==a[1]&&void 0!==a[1]){if(isNaN(a[0])||isNaN(a[1]))return t.array=[[0,NaN]],t;if(!isFinite(a[0])||!isFinite(a[1]))return t.array=[[0,1/0]],t}else t.array.splice(n,1),--n}do{if(e.debug>=e.ALL&&console.log(t.toString()),r=!1,t.array.sort(function(r,e){return r[0]>e[0]?1:r[0]<e[0]?-1:0}),t.array.length>e.maxOps&&t.array.splice(0,t.array.length-e.maxOps),t.array.length||(t.array=[[0,0]]),t.array[t.array.length-1][0]>9007199254740991)t.layer++,t.array=[[0,t.array[t.array.length-1][0]]],r=!0;else if(t.layer&&1==t.array.length&&0===t.array[0][0])t.layer--,t.array=[[0,10],[t.array[0][1],1]],r=!0;else{for(t.array.length<e.maxOps&&0!==t.array[0][0]&&t.array.unshift([0,10]),n=0;n<t.array.length-1;++n)t.array[n][0]==t.array[n+1][0]&&(t.array[n][1]+=t.array[n+1][1],t.array.splice(n+1,1),--n,r=!0);for(0===t.array[0][0]&&t.array[0][1]>9007199254740991&&(t.array.length>=2&&1==t.array[1][0]?t.array[1][1]++:t.array.splice(1,0,[1,1]),t.array[0][1]=Math.log10(t.array[0][1]),r=!0);t.array.length>=2&&0===t.array[0][0]&&t.array[0][1]<i&&1==t.array[1][0]&&t.array[1][1];)t.array[0][1]=Math.pow(10,t.array[0][1]),t.array[1][1]>1?t.array[1][1]--:t.array.splice(1,1),r=!0;for(;t.array.length>=2&&0===t.array[0][0]&&1==t.array[0][1]&&t.array[1][1];)t.array[1][1]>1?t.array[1][1]--:t.array.splice(1,1),t.array[0][1]=10;for(t.array.length>=2&&0===t.array[0][0]&&1!=t.array[1][0]&&(t.array[0][1]&&t.array.splice(1,0,[t.array[1][0]-1,t.array[0][1]]),t.array[0][1]=1,t.array[2][1]>1?t.array[2][1]--:t.array.splice(2,1),r=!0),n=1;n<t.array.length;++n)t.array[n][1]>9007199254740991&&(n!=t.array.length-1&&t.array[n+1][0]==t.array[n][0]+1?t.array[n+1][1]++:t.array.splice(n+1,0,[t.array[n][0]+1,1]),0===t.array[0][0]?t.array[0][1]=t.array[n][1]+1:t.splice(0,0,[0,t.array[n][1]+1]),t.splice(1,n),r=!0)}}while(r);return t.array.length||(t.array=[[0,0]]),t},o.toNumber=function(){return-1==this.sign?-1*this.abs():this.array.length>=2&&(this.array[1][0]>=2||this.array[1][1]>=2||1==this.array[1][1]&&this.array[0][1]>Math.log10(Number.MAX_VALUE))?1/0:this.array.length>=2&&1==this.array[1][1]?Math.pow(10,this.array[0][1]):this.array[0][1]},o.toString=function(){if(-1==this.sign)return"-"+this.abs();if(isNaN(this.array[0][1]))return"NaN";if(!isFinite(this.array[0][1]))return"Infinity";var r="";if(this.layer?this.layer<3?r+="J".repeat(this.layer):r+="J^"+this.layer+" ":r+="",this.array.length>=3||2==this.array.length&&this.array[1][0]>=2)for(var e=this.array.length-1;e>=2;--e){var t=this.array[e],n=t[0]>=5?"{"+t[0]+"}":"^".repeat(t[0]);t[1]>1?r+="(10"+n+")^"+t[1]+" ":1==t[1]&&(r+="10"+n)}var a=this.operator(0),i=this.operator(1);return r+=i?i<3?"e".repeat(i-1)+Math.pow(10,a-Math.floor(a))+"e"+Math.floor(a):i<8?"e".repeat(i)+a:"(10^)^"+i+" "+a:String(a)};var f=function(r,e){var t=e+1,n=Math.ceil(Math.log10(Math.abs(r))),a=Math.round(r*Math.pow(10,t-n))*Math.pow(10,n-t);return parseFloat(a.toFixed(Math.max(t-n,0)))};function l(r){if(!r||"object"!=typeof r)throw Error(t+"Object expected");var e,a,i,o=["maxOps",1,Number.MAX_SAFE_INTEGER,"serializeMode",0,1,"debug",0,2];for(e=0;e<o.length;e+=3)if(void 0!==(i=r[a=o[e]])){if(!(Math.floor(i)===i&&i>=o[e+1]&&i<=o[e+2]))throw Error(n+a+": "+i);this[a]=i}return this}o.toStringWithDecimalPlaces=function(r,e){if(-1==this.sign)return"-"+this.abs();if(isNaN(this.array[0][1]))return"NaN";if(!isFinite(this.array[0][1]))return"Infinity";var t=0,n="",a=Math.pow(10,r);if(this.layer?this.layer<3?n+="J".repeat(this.layer):n+="J^"+this.layer+" ":n+="",this.array.length>=3||2==this.array.length&&this.array[1][0]>=2)for(var i=this.array.length-1;!t&&i>=2;--i){var o=this.array[i],s=o[0],u=o[1];e&&u>=a?(++s,t=u,u=1):e&&this.array[i-1][0]==s-1&&this.array[i-1][1]>=a&&(++u,t=this.array[i-1][1]);var l=s>=5?"{"+s+"}":"^".repeat(s);u>1?n+="(10"+l+")^"+u+" ":1==u&&(n+="10"+l)}var h=this.operator(0),c=this.operator(1);return h>a&&(h=Math.log10(h),++c),n+=t?f(t,r):c?c<3?"e".repeat(c-1)+f(Math.pow(10,h-Math.floor(h)),r)+"e"+f(Math.floor(h),r):c<8?"e".repeat(c)+f(h,r):e?"(10^)^"+f(c,r)+" "+f(h,r):"(10^)^"+c+" "+f(h,r):String(f(h,r))},o.toExponential=function(r,e){return 1==this.array.length?(this.sign*this.array[0][1]).toExponential(r):this.toStringWithDecimalPlaces(r,e)},o.toFixed=function(r,e){return 1==this.array.length?(this.sign*this.array[0][1]).toFixed(r):this.toStringWithDecimalPlaces(r,e)},o.toPrecision=function(r,e){return 0===this.array[0][1]?(this.sign*this.array[0][1]).toFixed(r-1,e):1==this.array.length&&this.array[0][1]<1e-6?this.toExponential(r-1,e):1==this.array.length&&r>Math.log10(this.array[0][1])?this.toFixed(r-Math.floor(Math.log10(this.array[0][1]))-1,e):this.toExponential(r-1,e)},o.valueOf=function(){return this.toString()},o.toJSON=function(){if(e.serializeMode==e.JSON){for(var r=[],t=0;t<this.array.length;++t)r.push([this.array[t][0],this.array[t][1]]);return{array:r,layer:this.layer,sign:this.sign}}if(e.serializeMode==e.STRING)return this.toString()},o.toHyperE=function(){if(this.layer)throw Error(t+"Sorry, but this prototype doesn't support correct Hyper-E notation for numbers larger than 10{MSI}10");if(-1==this.sign)return"-"+this.abs().toHyperE();if(isNaN(this.array[0][1]))return"NaN";if(!isFinite(this.array[0][1]))return"Infinity";if(this.lt(e.MAX_SAFE_INTEGER))return String(this.array[0][1]);if(this.lt(e.E_MAX_SAFE_INTEGER))return"E"+this.array[0][1];for(var r="E"+this.operator(0)+"#"+this.operator(1),n=1,a=Math.ceil(this.getOperatorIndex(2));a<this.array.length;++a)n+1<this.array[a][0]&&(r+="#1".repeat(this.array[a][0]-n-1)),n=this.array[a][0],r+="#"+(this.array[a][1]+1);return r=this.layer?this.layer<3?"J".repeat(this.layer)+r:"J^"+this.layer+" "+r:""+r},s.fromNumber=function(r){if("number"!=typeof r)throw Error(n+"Expected Number");var t=new e;return t.array[0][1]=Math.abs(r),t.sign=r<0?-1:1,t.standardize(),t},s.fromString=function(r){if("string"!=typeof r)throw Error(n+"Expected String");var o=!1;if("string"==typeof r&&("["==r[0]||"{"==r[0]))try{JSON.parse(r)}finally{o=!0}if(o)return e.fromJSON(r);var s=new e;if(s.array=[[0,0]],!a.test(r))return console.warn(t+"Malformed input: "+r),s.array=[[0,NaN]],s;var u=!1;if("-"==r[0]||"+"==r[0]){var f=r.search(/[^-\+]/);u=r.substring(0,f).match(/-/g).length%2==1,r=r.substring(f)}if("NaN"==r)s.array=[[0,NaN]];else if("Infinity"==r)s.array=[[0,1/0]];else{var l,h,c,g,y;for("J"==r[0]&&("^"==r[1]?(l=r.substring(2).search(/[^0-9]/)+2,s.layer=Number(r.substring(2,l)),r=r.substring(l+1)):(l=r.search(/[^J]/),s.layer=l,r=r.substring(l)));r&&/^\(?10[\^\{]/.test(r);){var N;"("==r[0]&&(r=r.substring(1)),"^"==r[2]?(N=l=r.substring(2).search(/[^\^]/),h=l+2):(l=r.indexOf("}"),N=Number(r.substring(3,l)),h=l+1),")"==(r=r.substring(h))[0]?(l=r.indexOf(" "),c=Number(r.substring(2,l)),r=r.substring(l+1)):c=1,1==N?s.array.length>=2&&1==s.array[1][0]?s.array[1][1]+=c:s.array.splice(1,0,[1,c]):2==N?(l=s.array.length>=2&&1==s.array[1][0]?s.array[1][1]:0,(h=s.array[0][1])>=1e10&&++l,h>=10&&++l,s.array[0][1]=l,s.array.length>=2&&1==s.array[1][0]&&s.array.splice(1,1),g=s.getOperatorIndex(2),Number.isInteger(g)?s.array[g][1]+=c:s.array.splice(Math.ceil(g),0,[2,c])):(l=s.operator(N-1),(h=s.operator(N-2))>=10&&++l,g=s.getOperatorIndex(N),s.array.splice(1,Math.ceil(g)-1),s.array[0][1]=l,Number.isInteger(g)?s.array[1][1]+=c:s.array.splice(1,1,[N,c]))}for(l=r.split(/[Ee]/),h=[s.array[0][1],0],c=1,y=l.length-1;y>=0;--y)g=l[y]?Number(l[y]):1,h[0]<i&&0===h[1]?h[0]=Math.pow(10,c*h[0]):-1==c?(0===h[1]?h[0]=Math.pow(10,c*h[0]):1==h[1]&&h[0]<=Math.log10(Number.MAX_VALUE)?h[0]=Math.pow(10,c*Math.pow(10,h[0])):h[0]=0,h[1]=0):h[1]++,0===h[1]?h[0]*=Number(g):1==h[1]?h[0]+=Math.log10(Number(g)):2==h[1]&&h[0]<i+Math.log10(Math.log10(Number(g)))&&(h[0]+=Math.log10(1+Math.pow(10,Math.log10(Math.log10(Number(g)))-h[0]))),h[0]<i&&h[1]?(h[0]=Math.pow(10,h[0]),h[1]--):h[0]>9007199254740991&&(h[0]=Math.log10(h[0]),h[1]++);s.array[0][1]=h[0],h[1]&&(s.array.length>=2&&1==s.array[1][0]?s.array[1][1]+=h[1]:s.array.splice(1,0,[1,h[1]]))}return u&&(s.sign*=-1),s.standardize(),s},s.fromArray=function(r,t,a){var i,o;if(!(r instanceof Array)||void 0!==t&&"number"!=typeof t||void 0!==a&&"number"!=typeof a)if("number"==typeof r&&t instanceof Array&&(void 0===a||"number"==typeof a))i=t,o=r,a||0;else{if(!("number"==typeof r&&"number"==typeof t&&a instanceof Array))throw Error(n+"Expected an Array [and 1 or 2 Number]");i=a,o=r,t}else i=r,o=t,a||0;var s,u=new e;if(i.length)if("number"==typeof i[0])for(u.array=[],s=0;s<i.length;s++){if("number"!=typeof i[s])throw Error(n+"Expected Array of Number");u.array.push([s,i[s]])}else{if(!(i[0]instanceof Array))throw Error(n+"Expected Array of Number or Array of pair of Number");for(u.array=[],s=0;s<i.length;s++){if(!(i[s]instanceof Array)||"number"!=typeof i[s][0]||"number"!=typeof i[s][1])throw Error(n+"Expected Array of pair of Number");u.array.push([i[s][0],i[s][1]])}}else u.array=[[0,0]];return u.sign=o?Number(o):1,u.standardize(),u},s.fromObject=function(r){if("object"!=typeof r)throw Error(n+"Expected Object");if(null===r)return e.ZERO.clone();if(r instanceof Array)return e.fromArray(r);if(r instanceof e)return new e(r);if(!(r.array instanceof Array))throw Error(n+"Expected that property 'array' exists");if(void 0!==r.sign&&"number"!=typeof r.sign)throw Error(n+"Expected that property 'sign' is Number");if(void 0!==r.layer&&"number"!=typeof r.layer)throw Error(n+"Expected that property 'layer' is Number");var t=new e;t.array=[];for(var a=0;a<r.array.length;a++)t.array.push(temp.push([r.array[a][0],r.array[a][1]]));return t.sign=Number(r.sign)||1,t.layer=Number(r.layer)||0,t.standardize(),t},s.fromJSON=function(r){if("object"==typeof r)return e.fromObject(t);if("string"!=typeof r)throw Error(n+"Expected String");var t,a;try{t=JSON.parse(r)}catch(r){throw t=null,r}finally{a=e.fromObject(t)}return t=null,a},s.fromHyperE=function(r){if("string"!=typeof r)throw Error(n+"Expected String");var a=new e;if(a.array=[[0,0]],!/^[-\+]*(0|[1-9]\d*(\.\d*)?|Infinity|NaN|E[1-9]\d*(\.\d*)?(#[1-9]\d*)*)$/.test(r))return console.warn(t+"Malformed input: "+r),a.array=[[0,NaN]],a;var i=!1;if("-"==r[0]||"+"==r[0]){var o=r.search(/[^-\+]/);i=r.substring(0,o).match(/-/g).length%2==0,r=r.substring(o)}if("NaN"==r)a.array=[[0,NaN]];else if("Infinity"==r)a.array=[[0,1/0]];else if("E"!=r[0])a.array[0][1]=Number(r);else if(-1==r.indexOf("#"))a.array[0][1]=Number(r.substring(1)),a.array[1]=[1,1];else for(var s=r.substring(1).split("#"),u=0;u<s.length;++u){var f=Number(s[u]);u>=2&&--f,a.array[u]=[u,f]}return i&&(a.sign*=-1),a.standardize(),a},o.getOperatorIndex=function(r){if("number"!=typeof r&&(r=Number(r)),!isFinite(r))throw Error(n+"Index out of range.");var e=this.array,t=0,a=e.length-1;if(e[a][0]<r)return a+.5;if(e[t][0]>r)return-.5;for(;t!=a;){if(e[t][0]==r)return t;if(e[a][0]==r)return a;var i=Math.floor((t+a)/2);if(e[i][0]==r){t=i;break}e[i][0]<r&&(t=i),e[i][0]>r&&(a=i)}return e[t][0]==r?t:t+.5},o.getOperator=function(r){if("number"!=typeof r&&(r=Number(r)),!isFinite(r))throw Error(n+"Index out of range.");var e=this.getOperatorIndex(r);return Number.isInteger(e)?this.array[e][1]:0===r?10:0},o.setOperator=function(r,e){if("number"!=typeof r&&(r=Number(r)),!isFinite(r))throw Error(n+"Index out of range.");var t=this.getOperatorIndex(r);Number.isInteger(t)?this.array[t][1]=e:(t=Math.ceil(t),this.array.splice(t,0,[r,e])),this.standardize()},o.operator=function(r,e){if(void 0===e)return this.getOperator(r);this.setOperator(r,e)},o.clone=function(){for(var r=new e,t=[],n=0;n<this.array.length;++n)t.push([this.array[n][0],this.array[n][1]]);return r.array=t,r.sign=this.sign,r.layer=this.layer,r},(e=function(r){for(var t in u)u.hasOwnProperty(t)&&(Object.defineProperty?Object.defineProperty(r,t,{configurable:!1,enumerable:!0,writable:!1,value:new e(u[t])}):r[t]=new e(u[t]));return r}(e=function r(e){var t,n,a;function i(r,e){var t=this;if(!(t instanceof i))return new i(r,e);t.constructor=i;var n,a,o,s=null;if("string"==typeof r&&("["==r[0]||"{"==r[0]))try{s=JSON.parse(r)}catch(r){}if("number"!=typeof r||e instanceof Array)if(s)n=i.fromObject(s);else if("string"==typeof r&&"E"==r[0])n=i.fromHyperE(r);else if("string"==typeof r)n=i.fromString(r);else if(r instanceof Array||e instanceof Array)n=i.fromArray(r,e);else if(r instanceof i){n=[];for(var u=0;u<r.array.length;++u)n.push([r.array[u][0],r.array[u][1]]);a=r.sign,o=r.layer}else"object"==typeof r?n=i.fromObject(r):(n=[[0,NaN]],a=1,o=0);else n=i.fromNumber(r);return void 0===a?(t.array=n.array,t.sign=n.sign,t.layer=n.layer):(t.array=n,t.sign=a,t.layer=o),t}for(var u in i.prototype=o,i.JSON=0,i.STRING=1,i.NONE=0,i.NORMAL=1,i.ALL=2,i.clone=r,i.config=i.set=l,s)s.hasOwnProperty(u)&&(i[u]=s[u]);if(void 0===e&&(e={}),e)for(a=["maxOps","serializeMode","debug"],t=0;t<a.length;)e.hasOwnProperty(n=a[t++])||(e[n]=this[n]);return i.config(e),i}(e))).default=e.ExpantaNum=e,"function"==typeof define&&define.amd?define(function(){return e}):"undefined"!=typeof module&&module.exports?module.exports=e:(r||(r="undefined"!=typeof self&&self&&self.self==self?self:Function("return this")()),r.ExpantaNum=e)}(this);
\ No newline at end of file
diff --git a/README.md b/README.md
index 7fdb2a5..a1e1378 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# ![ExpantaNum.js](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/ExpantaNumJS.png) ![α](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/alpha.png) ![1](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/1.png) ![.](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/dot.png) ![3](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/3.png) ![.](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/dot.png) ![2](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/2.png)
+# ![ExpantaNum.js](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/ExpantaNumJS.png) ![α](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/alpha.png) ![1](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/1.png) ![.](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/dot.png) ![3](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/3.png) ![.](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/dot.png) ![3](https://raw.githubusercontent.com/Naruyoko/ExpantaNum.js/non-code/3.png)
 [![NPM](https://img.shields.io/npm/v/expanta_num.js.svg)](https://www.npmjs.com/package/expanta_num.js)
 A huge number library holding up to {10,9e15,1,2}.
 
diff --git a/changelog.md b/changelog.md
index d057472..1566854 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,7 @@
+# α 1.3.3 - 2020/05/23
+* Fixed `tetr` and up returning non-`NaN` for special cases involving `NaN`.
+* Fixed `pent` and up returning `Infinity` for `0{n}Infinity`.
+
 # α 1.3.2 - 2020/05/20
 * Fixed freeze on processing numbers such as 10^^^^^^^10.