An embedded and charset-unspecified text was scrubbed... Name: not available URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20090521/51f4aa23/attachment-0001.pl>
Inverse
2 messages · Kon Knafelman, Zeljko Vrba
On Thu, May 21, 2009 at 08:36:27PM +1000, Kon Knafelman wrote:
I have coded the following polynomial function y= function(x) x^3-2*x^2+1 I need to find the inverse of this, but the code i am using now isnt returning what i want it to.
This function is not injective, so the inverse does not exist. For example, y==0.5 has three solutions: -0.452, 0.597, 1.855