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examples of Math Graphics 数学函数图 制图法

2.3. Surface 2D

Content

2D Surface

  1. color maps
  2. Enter sin(x), then tick the fill checkbox under graph.

    single variable with integral(x)

  3. integral(semicircle(1)) semicircle with radius 1.

    animation

    add the function timer(x) for animation
  4. integral(semicircle(timer(4))) semicircle with radius from 0 to 4.

    two variables x and y

    f(x,y)+abs(f(x,y))

  5. circle(1)+abs(circle(1)) disc with radius 1.
  6. disc(1) disc with radius 1.
  7. oval(2,1)+abs(oval(2,1)) oval with radius (2,1).
  8. ring(1,2) ring with radius 1 and 2

    f(x,y)-abs(f(x,y))

  9. y-x^2-abs(y-x^2) .

    two variables with contour3D(x-y)

  10. contour3D( x*x+y*y-1) circle
  11. contour3D( sin(x*x+y*y-1) ) target
  12. contour3D( y-sin(x) ) sine

    two variables with plot2D(x-y)

    click the fill checkbox to fill color.
  13. plot2D( x*x+y*y-1) circle
  14. plot2D( cos(x*x+y*y-t) ) target
  15. plot2D( y-sin(x) ) sine

    animation

    click the auto-t checkbox to auto change t value.
  16. plot2D( cos(x*x+y*y-t) ) water wave
    add the function timer(x) for animation
  17. plot2D( y-sin(x-timter(9)) ) sea
  18. coloring square 变色花环

    two variables with parametric3D(x,x,x-y)

    The first two parameters are the same as x or y, the last parameter is x and y
  19. parametric3D(x,x,sin(x)-y)
  20. parametric3D(y,y,sin(y)-sin(x)) sine wave

    Complex Functions

  21. coloring complex function in WebXR Surface 2D
  22. complex plot z with complexplot(z)

    animation

  23. complex animation z with complexanimate(z)

    Drawing with mouse

  24. Draw shape, then fill with color.

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Reference 参阅

  • 怎么用隐函数填充单位圆的内部?
  • example 例题
  • graph 制图
  • graphics 制图法
  • animation 动画 
    See Also
    
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