<< condnb_expcond Condnb condnb_plotcond >>

Condnb >> Condnb > condnb_logcond

condnb_logcond

Computes the condition number of the log function.

Calling Sequence

[c,y] = condnb_logcond ( 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. This function is badly conditionned near x=1.

Examples

[c,y] = condnb_logcond ( 2 )
[c,y] = condnb_logcond ( 1 )

condnb_plotcond ( condnb_logcond , linspace(1.e-10,10,1000) );

Authors

<< condnb_expcond Condnb condnb_plotcond >>