Keywords: Shekel 2D.jpg I created this file with a matlab script Just create a 10x2 matrix of a aij in the formula and a 10x1 matrix of c ci in the formula grid the space use some arbitrary girdding of x1 and x2 and use surf x1 x2 y to get the plot Sarvagna 19 19 17 October 2005 UTC Surface plots 2005-10-17 own assumed Sarvagna~commonswiki |