java-power-function.txt

# java pow. function
def pow(value, exp)

	if exp in [-0, +0]
		return 1.0

	if exp == 1.0
		return value
	
	if exp == NaN
		return NaN
		
	if value == NaN and exp != 0
		return NaN
	
	if	abs(value) > 1 and exp == +Inf	or
		abs(value) < 1 and exp == -Inf
		
		return +Inf
		
	if 	abs(value) > 1 and exp == -Inf	or
		abs(value) < 1 and exp == +Inf
		
		return +0.0
	
	if abs(value) == 1 and exp in [Inf, -Inf]
		return NaN
		
	if 	value == +0.0 and exp > 0	or
		value == +Inf and exp < 0
		
		return +0.0
		
	if 	value == +0.0 and exp < 0	or
		value == +Inf and exp > 0
		
		return +Inf
		
	if value == -0.0
		
	
	end
	
end