/* -*-ePiX-*- */ #include "epix.h" using namespace ePiX; double f(double x) { return -2 + x*(11 + x*(-9 + x*(-14 + 8*x))); } void cross(double x, double f(double)) { marker(P(x, f(x)), TIMES); } int main() { picture(P(-1.5,-13), P(3.5,2), "1.15 x 3.45in"); begin(); bold(); line(P(xmin(),0), P(3,0)); line(P(0,-3), P(0,ymax())); set_crop(); plot(f, xmin(), xmax(), 240); cross(-1, f); cross( 0, f); cross( 1, f); cross( 2, f); label(P(0,0), P(-2,2), "$O$", tl); label(P(-0.5,0), P(0,-2), "$1$", b); label(P(0.5*(xmin()+xmax()), ymin()), P(0,-12), "\\textsc{Fig.~13}", b); tikz_format(); end(); }