fold

Magnitude folding function.

Syntax

fold(vec_expr)

Argument

vec_expr
A valid vector expression.

Example

Curve Math Vectors Result
x = freq(c1.x)

y = fold(fftmag(c1.y))

 Given c1, a curve is created which is the folded (one-sided) frequency spectrum of curve c1.

Comments

The result contains a number of elements equal to half the number of elements in vec_expr. The first element of the result is the same as the first element of vec_expr. All other elements of the result are twice the value of the corresponding element in vec_expr.

fold should only be used with magnitude functions.