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C Library Functions  - linearint (3)

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NAME

linearint(3f) - [M_math:fit] interpolates a curve defined by X(i),Y(i) using linear interpolation at given XI(j) values

CONTENTS

Synopsis
Description
Options
Returns
Example

SYNOPSIS

SUBROUTINE linearint(X,Y,N,XI,YI,NI,KERR)

      INTEGER,intent(in)  :: N, NI
      REAL,intent(in)     :: X(N),Y(N),XI(NI)
      REAL,intent(out)    :: YI(NI)
      INTEGER,intent(out) :: KERR

DESCRIPTION

OPTIONS

X	array of data abscissas
Y	array of data ordinates
N	number of data points (the dimension of X,Y)
XI	array of abscissas (in arbitrary order) at which the curve is to be interpolated.
YI	array of interpolated ordinates (OUTPUT)
NI	dimension of XI, YI (if NI=1, XI, YI may be simple variables.)
KERR	error status parameter NORMAL CODES: =0 means the curve was evaluated at each abscissa in XI using only interpolation. =1 means the curve was evaluated at each abscissa in XI, but at least one extrapolation was performed. ABNORMAL CODES: =2 means the requested number of interpolations, NI, was not positive.

RETURNS

EXAMPLE

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Nemo Release 3.1

linearint (3)

August 28, 2026

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