Tschirnhausen Cubic Catacaustic: Difference between revisions
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var cubic = brd.create('curve', | var cubic = brd.create('curve', | ||
[function(t){ return a.Value()*( | [function(t){ return 3*a.Value()*(3-3*t*t);}, | ||
function(t){ return a.Value()*t*(3-t*t);}, | function(t){ return a.Value()*t*(3-t*t);}, | ||
-2, 2 | -2, 2 | ||
Revision as of 09:56, 13 January 2011
A semicubical parabola is a curve defined parametrically as
- [math]\displaystyle{ x = t^2 }[/math]
- [math]\displaystyle{ y = at^3 }[/math]
