<< condnb_erfinvcond Condnb condnb_logcond >>

Condnb >> Condnb > condnb_expcond

condnb_expcond

Computes the condition number of the exp function.

Calling Sequence

[c,y] = condnb_expcond ( x )

Parameters

x :

a n-by-m matrix of doubles

c :

a n-by-m matrix of doubles, the condition number

y :

a n-by-m, matrix of doubles, the function values

Description

Computes the condition number of the exp function. The exp function grows so fast that it is equal to %inf whenever x > 800, and is equal to 0 whenever x < -800. This function has a not so bad condition number, since it is never larger than 1.e2.

Examples

[c,y] = condnb_expcond ( 1 )
[c,y] = condnb_expcond ( 1.e2 )

condnb_plotcond ( condnb_expcond , linspace(-7e2,7.e2,1000) );

Authors

<< condnb_erfinvcond Condnb condnb_logcond >>