Modified Bessel functions of the second kind
Scilab besselk function can work with only one output argument, but the Matlab function can work with two outputs arguments.
Matlab Scilab
y = `besselk`_(alpha,x)
y = `besselk`_(alpha,x,1)
[y,ierr] = `besselk`_(alpha,...)
y = `besselk`_(alpha,x)
y = `besselk`_(alpha,x,ice),ice = 1 `or`_ ice = 2