MTM/expm1 - Maple Help

Home : Support : Online Help : MTM/expm1

MTM

 expm1
 the translated exponential function

 Calling Sequence expm1(x)

Parameters

 x - algebraic expression or array

Description

 • expm1(x) calculates the value of ${ⅇ}^{x}-1$, where exp(x) is the exponential function of x, that is e to the power of x, where e is the base of the natural logarithm, 2.718281828... .
 • By default, expm1(x) will evaluate only when the result is an exact value, or when the input x is a floating-point number.  When x is a symbolic expression it will remain in function form so that it can be manipulated symbolically or as part of a larger expression.
 • If x is an array, the result is an element-wise mapping over x.

Examples

 > $\mathrm{with}\left(\mathrm{MTM}\right):$
 > $\mathrm{expm1}\left(1.0\right)$
 ${1.718281828}$ (1)
 > $\mathrm{expm1}\left(I\mathrm{\pi }\right)$
 ${-2}$ (2)

Compatibility

 • The MTM[expm1] command was introduced in Maple 2021.
 • For more information on Maple 2021 changes, see Updates in Maple 2021.