Renders the Groebner fan of an ideal. The output is put into an xfig file if a filename is provided. If no filename is provided then macaulay uses fig2dev to make a png which is displayed by the operating system (see show).
i1 : R = QQ[symbol a..symbol f]; |
i2 : I = pfaffians(4, genericSkewMatrix(R,4)) o2 = ideal(c*d - b*e + a*f) o2 : Ideal of R |
i3 : null -- render(I) |
i4 : null -- render("pfaffgfan.fig", I) |
To run the examples above, ommit the null -- . The first command will display the Groebner fan of I while the second writes the image to file.