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/* -*-ePiX-*- */
#include "epix.h"
using namespace ePiX;
const int N(8); // Number of summands
double weierstrass(double t)
{
double y(0);
for(int i=0; i < N; ++i)
y += pow(2,-i)*cb(pow(2,i)*t);
return y;
}
int main()
{
picture(P(-2, 0), P(2, 1.5), "3.2 x 1.2in");
begin();
h_axis(2*xsize());
v_axis(2*ysize());
h_axis_labels(xsize(), P(-4,-8));
blue();
plot(cb, xmin() - 0.25, xmax()+0.25, 4*xsize() + 2);
bold(Black());
plot(weierstrass, xmin(), xmax(), pow(2,N));
pen(Red());
plot(weierstrass, 0.5, 1.5, pow(2,N-2));
end();
}
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