Test function for matrix squaring
Test function for matrix squaring

fredrik-johansson/flint2,fredrik-johansson/flint2,dsroche/flint2,wbhart/flint2,jpflori/flint2,dsroche/flint2,jpflori/flint2,dsroche/flint2,fredrik-johansson/flint2,wbhart/flint2,jpflori/flint2,wbhart/flint2,jpflori/flint2,dsroche/flint2