The exp() function returns the value of e (the base of natural logarithms) raised to the power of x.
The log() function returns the natural logarithm of x.
The log10() function returns the base-10 logarithm of x.
The log() and log10() functions can return the following errors:
The argument x is negative.
The argument x is zero. The log of zero is not defined.
The pow() function can return the following error:
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