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