ref: 89477564bebcc96a20f004a5666642f2227a2b1c dir: /sys/src/cmd/plot/libplot/dpoint.c/
#include "mplot.h" void dpoint(double x, double y){ draw(screen, Rect(SCX(x), SCY(y), SCX(x)+1, SCY(y)+1), getcolor(e1->foregr), nil, ZP); move(x, y); }