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ilinear

(./ilinear.m)


Function Synopsis

F=ilinear(x,y,u)

Help text

ILINEAR Linear Interpolation of a 1-D function.
  F=ILINEAR(Y,XI) returns the value of the 1-D function Y at the
  points XI using linear interpolation. length(F)=length(XI). XI is
  an index into the vector Y. Y is the value of the function
  evaluated uniformly on a interval. If Y is a matrix, then
  the interpolation is performed for each column of Y in which
  case F is length(XI)-by-size(Y,2).

  If Y is of length N then XI must contain values between 1 and N.
  The value NaN is returned if this is not the case.

  F = ILINEAR(X,Y,XI) uses the vector X to specify the coordinates
  of the underlying interval. X must be equally spaced and
  monotonic. NaN's are returned for values of XI outside the
  coordinates in X.

  See also ICUBIC, INTERP1.

Cross-Reference Information

This function is called by

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