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18.2.1  Curvature of a curve

The curvature command finds the curvature of a curve. The curve can be given as an object or by a parameterization.

Examples

trigsimplify(curvature([5*cos(t),5*sin(t)],t))
     
1
5
          
trigsimplify(curvature([2*cos(t),3*sin(t)],t))
     
24 
2
 
cos
t
+13
260 cos
t
+25 cos
t
+363
          
curvature([2*cos(t),3*sin(t)],t,pi/2)
     
3
4
          
curvature(plot(x^2),point(1,1))

(see Section 19.2.3 and Section 26.5.2.)

     
2
25
 
5
          

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