A question for mathematicians
<div>Could you tell me a website where I can make a 3D graphics of surfaces like z=xy and ect. Where I can rotate them. I know that wolfram is quite good, but it's not free and I can't rotate</div>

<div><a href="https://www.math10.com/en/geometry/geogebra/fullscreen.html" rel="noopener noreferrer" target="_blank">https://www.math10.com/en/geometry/geogebra/fullscreen.html</a></div><div>I use this. Let me know if you can't figure it out.</div><div>Good luck!</div>

<div>Hi, Mary!</div><div>If you know a bit of Python, you can try matplotlib library, that should do the thing.</div>