abs	Absolute value for integers
acos	Arc cosine
asin	Arc sine
atan	Arc tangent
ceil	Smallest double integer not less than given
cos	Cosine
exp	Exponential function
fabs	Absolute value
floor	Largest double integer not greater than given
ln	Natural logarithm
log	Common logarithm
modf	Splitting into whole and fractional parts
pow	Raising to power
sin	Sine
sqrt	Square root
tan	Tangent

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