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plot 制图






For example :

  1. to fill sin(x) , select the fill checkbox, then click the plot button
  2. to unfill sin(x) , unselect the fill checkbox, then click the plot button
  3. for implicit function of x and y, e.g. sin(x)-y
  4. for plot of two functions f1(x) and f2(x), the two function must have the y variable, (y-f1(x))*(y-f2(x)), e.g. (y*y+x*x-1)*(y*y+x*x-t-2)
  5. to fill y-f(x) + abs(y-f(x)), the function must have the y variable, e.g. (x*x+y*y-1)+abs(x*x+y*y-1) ,
  6. for disc, disc(1)
  7. for ring, ring(1,2)
  8. for change of color with contour3D, e.g. contour3D( y-sin(x-t) )
  9. for equation, input sin(x)-cos(y)=0 or sin(x)-cos(y)
  10. for derivative of sin(x), input ds(x=>sin(x),x)
  11. for second order derivative of sin(x), input ds(x=>sin(x),x,2)
  12. for the 0.5 order derivative = semi derivative, input ds(x=>sin(x),x,0.5)
  13. for the -0.5 order derivative = semi integral, input ds(x=>sin(x),x,-0.5)

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