Analysis

Parametric Curves

Curves, which are not determined by an explicit function term, but by two functions for the horizontal and vertical direction, can be plotted with this program.

Examples:

1. The Circle

    x(k) = sin(k)

    y(k) = cos(k)

    k from -Pi to Pi

2. The Spirale

    x(k) = k/8*sin(k)

    y(k) = k/8*cos(k)

    k from 0 to 20

3. The Lissajou figures

    x(k) = sin(3*k)

    y(k) = cos(5*k)

    k from -Pi to Pi

Lissajou figures are obtained when two a-c voltages with different frequencies are applied to one oscilloscope

See also:

Supported Functions
Adjusting the Coordinate System
Wikipedia: Parametric equation | Lissajous curve
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