tion called by <a href="ridgeinterp.html">RIDGEINTERP</a>.
 
    XI=<a href="lininterp.html">LININTERP</a>(T1,T2,X1,X2,TI) interpolates a function X within an 
    independent variable T using a linear algorithm.
 
    The function values X1 and X2 may be arrays of any size provided they
    are the same size.  The "time" values T1 and T2 may be scalars, or 
    arrays of the same size as X1 and X2.
 
    If T1 and T2 and X1 and X2 are non-scalar arrays, T should either be
    a scalar or an array of the sa