Hi, 1) Your code has a few minor syntax errors(absence of * like in mathematica). In attachment the rigth one. 2)The value to plot are about 10^9. So to compute the point in two neibour with double precision accuracy will take much time. So just normalize to 10^9 and plot2d appears instantly. The question to the list. How to explain the following behaviour of the plot? Say I have f1(x):=2*x+1, f2(x):=10^9*f1(x); Then try plot2d for both. rgds, v
Attached file: som.mc