Hi

I'm having trouble drawing a (parametric) curve. I'm fairly certain that the equations are valid as they display correctly on WolframAlpha:

However, after entering the equations in Equation Driven Curve, no preview is shown and no curve is drawn:

Does anyone know what might be wrong? These are the equations:

x = (1.470 + 0.030) * cos(2 * pi * t) + 0.015 * cos((1.470 + 0.030) * 2 * pi * t / 0.030)

y = (1.470 + 0.030) * sin(2 * pi * t) + 0.015 * sin((1.470 + 0.030) * 2 * pi * t / 0.030)

Thanks

your first screenshot suggest that this is a closed loop - the equation driven curve does not handle closed loops.

try t1=0?