std_discrete_uniform SciMax Toolbox std_f

SciMax Toolbox >> std_exp

std_exp

Maxima Function

Calling Sequence

std_exp (m)

Description

Returns the standard deviation of an Exponential(m) random variable, with m>0.

The Exponential(m) random variable is equivalent to the Weibull(1,1/m), therefore when Maxima has not enough information to get the result, a noun form based on the Weibull standard deviation is returned.

(%i1) load (distrib)$
(%i2) std_exp(m);
                                       1
(%o2)                   std_weibull(1, -)
                                       m
(%i3) assume(m>0)$  std_exp(m);
                                1
(%o4)                           -
                                m
std_discrete_uniform SciMax Toolbox std_f