Hi Guys, i think this is a relatively simple question. 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. What is the general code for finding an inverse function? Thanks guys _________________________________________________________________ View photos of singles in your area Click Here au%2Fsearch%2Fsearch%2Easpx%3Fexec%3Dgo%26tp%3Dq%26gc%3D2%26tr%3D1%26lage%3D18%26uage%3D55%26cl%3D14%26sl%3D0%26dist%3D50%26po%3D1%26do%3D2%26trackingid%3D1046138%26r2s%3D1&_t=773166090&_r=Hotmail_Endtext&_m=EXT [[alternative HTML version deleted]]
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