DrHuang.com | list | math | function | coding | graphics | example | help | ? | 中文
+ + + =

contour3D
open the graphic in a separate full window.

It is implicit filled contour plot of a function of two variables over ranges. The line checkbox is implicit line plot of a function of two variables over ranges. The contour checkbox is contour by putting your expression inside the sin( ) function.

For example :

    In order to put x*x-y*y-1 inside sin( ), by clicking the contour checkbox e.g.
  1. sin(x*x-y*y-1),

    In order to fill between 2 functions f1 and f2, by f1(y-x)*f2(y-x), e.g.

  2. (y-sin(x)-1)*(y-sin(x)-t) 2D surface between 2 sin(x) functions, please change the t slide.
  3. (y*y+x*x-1)*(y*y+x*x-t) 2D surface between 2 circles, please change the t slide.
    Home | list | wiki | about | donate | index | forum | help | chat | translated from Chinese | 中文