Function trapz_unit

pub fn trapz_unit(arr: &mut Array) -> Result<Dynamic, Box<EvalAltResult>>

Returns the approximate integral of the curve defined by y using the trapezoidal method. Assumes that x-values have unit spacing.

let y = [1.0, 1.5, 2.0];
let A = trapz(y);
assert_eq(A, 3.0);

let y = [1, 2, 3];
let A = trapz(y);
assert_eq(A, 4.0);