Suppose we have two equations p1 = 3x+ 1 p2 = -1/3x + 3 As you may know because of slopes, these two lines must be perpendicular. It's true when I plot it on paper but when I do it in SageMath I get this:
sage: p1 = plot( 3*x + 1, -10, 10) sage: p2 = plot( -1/3*x + 3, -10, 10) sage: show ( p1 + p2 ) <http://up.liz.ir/f/6364-tmp_N1rNk.png> -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at http://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.