Compute the variance.
v = intprb_getvariance ( n , p , nprob )
a 1-by-1 matrix of doubles, integer value, the dimension of the space
a matrix of doubles, the parameters of the problem
a 1-by-1 matrix of doubles, integer value, the problem number
a 1-by-1 matrix of doubles, the variance
This function returns the variance associated with the
problem nprob
.
Internally, it is an interface function which calls the function getfunc (which selects appropriate test fuction based on nprob). If the variance is known, the returned value of v is unity. If the variance is unknown, the returned value of v is the empty matrix. For Genz's functions, the variance is unknown.
See the "Integration Problems User's Manual" available in the doc directory of this toolbox for a detailed description of this function.
"Integration Problems User's Manual", Michael Baudin, 2010