check 24 type 24 test 24 isvalid 24 validate 24 ndarray 24 isndarray 24 is 24 util 24 utils 24 utility 24 utilities 24 assert 24 assertion 24 stdassert 24 stdlib 24 nodejs 23 node-js 23 node 23 javascript 23 matrix 13 ismatrix 13 2d 13 square 8 symm 7 symmetric 7 double-precision 6 double 6 single-precision 6 float 6 single 6 vector 5 isvector 5 vec 5 1d 5 array 4 nd 4 mat 4 bisymmetric 4 float64array 3 float64 3 complex128array 3 float32 3 complex128 3 skew-symmetric 3 skew 3 complex64array 3 complex64 3 float32array 3 persymmetric 2 centrosymmetric 2 antisymmetric 1 antimetric 1 nonsymmetric 1 asymmetric 1