PDF-Version - am Institut für Baustatik

For a parametric plot, use the syntax plot ([fx, fy, range]). For example:
> plot ([sin(t), cos(t), t = -Pi..Pi])
To generate 3-D plots you use the plot3d command. For more details on plotting commands, you can
see ?plot and ?plot3d, or consult the Graphics chapter of the learning guide.
Some examples of how to generate Fortran 77 or C code:
> f := 1-2*x+3*x^2-2*x^3+x^4;
f := 1-2*x+3*x 2 -2*x 3 +x 4
> fortran(f);
t0 = 1-2*x+3*x**2-2*x**3+x**4
> fortran(f,optimized);
t1 = x**2
t2 = alog(t1)
t4 = sqrt(2.E0)
t5 = t2**2
t7 = 0.3141593E1*t2-t4*t5
> A := array(1..2,1..2,[[1,x],[2,3]]):
> Ainv := array(1..2,1..2,[]);
> with(linalg):
Warning, new definition for norm
Warning, new definition for trace
> Ainv := inverse(A);
> fortran(Ainv);
Ainv(1,1) = -3/(-3+2*x)
Ainv(1,2) = x/(-3+2*x)
Ainv(2,1) = 2/(-3+2*x)
Ainv(2,2) = -1/(-3+2*x)
> readlib(C);
> C(Ainv);
Ainv[0][0] = -3.0/(-3.0+2.0*x);
Ainv[0][1] = x/(-3.0+2.0*x);
Ainv[1][0] = 2.0/(-3.0+2.0*x);
Ainv[1][1] = -1/(-3.0+2.0*x);
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