I have implemented a custom matrix printer with "_print_MatrixBase(self, expr)." I am running "jupyter notebook" with the output of "_print_MatrixBase(self, expr)" being given by -
def _print_MatrixBase(self, expr): rows = expr.rows cols = expr.cols out_str = ' \\left [ \\begin{array}{' + (cols * 'c') + '} ' for row in range(rows): for col in range(cols): out_str += latex(expr[row,col]) + ' & ' out_str = out_str[:-2] + ' \\\\ ' out_str = out_str[:-4] + ' \\end{array}\\right ] ' if isinteractive(): return display(Math(out_str)) else: return out_str for "jupyter notebook" the output is "return display(Math(out_str))" where the out_str ins the tex output for the matrix. The notebook output is - See attached file Where sp3.g is a sympy Matrix. Why is "None" output along with the correct matrix output? -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To post to this group, send email to sympy@googlegroups.com. Visit this group at http://groups.google.com/group/sympy. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/2d60f6fc-a7bc-41e7-a82a-86cad4b7d096%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.