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integ

Numerical integration over Y with respect to X.

Syntax

Section titled “Syntax”
M = integ(X, Y)
M = integ(X, Y, flag)

Description

Section titled “Description”

Returns ∫Y dX computed via the trapezoidal rule on the paired samples X and Y. X and Y must be vectors of the same length. The flag controls whether NaN values are skipped (default) or propagated.

MathJet-specific name; analogous to MATLAB’s trapz(X, Y).

Examples

Section titled “Examples”
x = linspace(0, pi, 100);
integ(x, sin(x))         % ≈ 2  (∫sin(x)dx from 0 to π)

See also

Section titled “See also”
  • integabs — Numerical integration of |Y| with respect to X.
  • diff — Differences between adjacent elements.

Also categorized under: Range Functions / Math.