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Scilab help >> Differential calculus, Integration > inttrap

inttrap

integration of experimental data by trapezoidal interpolation

Calling Sequence

v = inttrap([x,] s)

Arguments

x

vector of increasing x coordinate data. Default value is 1:size(s,'*')

s

vector of y coordinate data

v

value of the integral

Description

Computes:

s(i)=f(x(i)) and x0=x(1), x1=x(n)

where f is a function described by a set of experimental values.

Between mesh points function is interpolated linearly.

Examples

t=0:0.1:%pi
inttrap(t,sin(t))

See Also

  • intg — definite integral
  • intc — Cauchy integral
  • intl — Cauchy integral
  • integrate — integration of an expression by quadrature
  • intsplin — integration of experimental data by spline interpolation
  • splin — cubic spline interpolation
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Last updated:
Mon Oct 01 17:34:40 CEST 2012