# Difference between revisions of "Tschirnhausen Cubic Catacaustic"

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], | ], | ||

{strokeWidth:1, strokeColor:'black'}); | {strokeWidth:1, strokeColor:'black'}); | ||

+ | |||

+ | var radpoint = brd.create('point',[function(){ return -a.Value()*8;},0],{name:'radiant point'}); | ||

var cataustic = brd.create('curve', | var cataustic = brd.create('curve', |

## Revision as of 12:00, 13 January 2011

A semicubical parabola is a curve defined parametrically as

- [math] x = t^2 [/math]

- [math] y = at^3 [/math]