f32array_append(fs1, @restfs2, ...)
f64array_append(fs1, @restfs2, ...)
Return an new array of 32-bit or 64-bit floating-point numbers created by appending the arrays fs2, ... to fs1.
f32array_append(#f32[1., 2., 3.], #f32[4., 5.])
// #f32[1., 2., 3., 4., 5.]
f64array_append(#f64[3453.323233], #f64[12222.33232323, 45545.545545], #f64[1., 2., 3.])
// #f64[3453.323233, 12222.33232323, 45545.545545, 1., 2., 3.]