Graphtoy
Anyone know of graphing software on the computer that can graph arbitrary inequalities and logical expressions like the HP Prime's advanced graphing can? [0] For example, if you say x^2 = y it will draw a sideways parabola, top and bottom (yes, it's not a function). Or if you say 10 = x^2 + y^2 it will draw a circle without any gaps. Or if you say    sin((1+sin(x+y))*asin(.5*(sin(x)+sin(y)))+(1+sin(x-y))*asin(.5*(cos(x)+cos(y))))=0

it draws something like a chain link fence. [1] It works well on a battery operated calculator, so a desktop computer should have no trouble with it, but does the software exist?[0]: https://www.youtube.com/watch?v=GAVqjBxFyXA
[1]: https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2F...