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