Logarithms & Exponentials Functions

`Cbr`	Cubic root
`Exp`	Exponential, e^x
`Exp2`	2^x
`Exp10`	10^x
`Expm`	Exp(x) - 1
`Log`	Neperian logarithm, base e logarithm
`Log2`	Base 2 logarithm
`Log10`	Decimal logarithm
`Logp`	Log(1+x)
`Sqr`	Square root