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C Library Functions  - qtfg (3)

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NAME

qtfg(3f) - [M_math] Compute integral values for given general table of argument and function values.

CONTENTS

Purpose
Usage
Remarks
Subroutines And Function Subprograms Required
Method

PURPOSE

Compute vector of integral values for given general table of argument and function values.

USAGE

call qtfg (X,Y,Z,NDIM)

    DESCRIPTION OF PARAMETERS

X	- The input vector of argument values.
Y	- The input vector of function values.
Z	- The resulting vector of integral values. Z may be identical with X or Y.
NDIM	- The dimension of vectors X,Y,Z.

REMARKS

No action in case NDIM less than 1.

SUBROUTINES AND FUNCTION SUBPROGRAMS REQUIRED

None

METHOD

Beginning with Z(1)=0, evaluation of vector z is done by means of Trapezoidal Rule (Second Order Formula). For reference, see

      F.B.Hildebrand, Introduction to Numerical Analysis,
      McGraw-Hill, New York/Toronto/London, 1956, pp.75.

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Nemo Release 3.1

qtfg (3)

July 22, 2023

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