File: interpln.man

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.TH interpln 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
interpln - linear interpolation
.SH CALLING SEQUENCE
.nf
[y]=interpln(xyd,x)  
.fi
.SH PARAMETERS
.TP 10
xyd
: 2 row matrix (xy coordinates of points)
.TP 10
x
: vector (abscissae)
.TP 10
y
: vector (y-axis values)
.SH DESCRIPTION
given \fVxyd\fR a set of points in the xy-plane  which increasing abscissae and \fVx\fR a set of abscissae, this function computes \fVy\fR the corresponding
y-axis values by linear interpolation.
.SH EXAMPLE
.nf
x=[1 10 20 30 40];
y=[1 30 -10 20 40];
plot2d(x',y',[-3],"011"," ",[-10,-40,50,50]);
yi=interpln([x;y],-4:45);
plot2d((-4:45)',yi',[3],"000");
.fi
.SH SEE ALSO
splin, interp, smooth