CLS
SCREEN 11, 0, 0
FOR a = 0 TO 7 * 3.14159 STEP .001#
x = 100 * SIN(a - 2 * 43 / 3) / COS(a + 76) * SIN(a / 24) + 320
y = 100 * COS(a * 34 - 2 / 31.5) / SIN(a - 34) * SIN(23 * a - 24) + 240
PSET (x, y)
NEXT a