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7.11.10 Embedded Tools

   

@DFT(R) -
The Discrete Fourier Transform of the range   R.

@EIGEN(M) -
The eigenvalues of the matrix M.  

@FFT(R) -
The Discrete Fourier Transform of the range   R using a fast Fourier Transform algorithm.

@FREQUENCY(R, B) -
Returns a frequency distribution for   values R with a set of intervals B.

@INVDFT(R) -
The inverse of the Discrete Fourier   Transform of the range R.

@INVERT(M) -
The inverse of matrix M.  

@INVFFT(R) -
The inverse of the Discrete Fourier   Transform of the range R using a fast Fourier Transform algorithm.

@LINCOEF(X, Y) -
The least squares coefficients for the   straight line fit.

@LINFIT(X, Y) -
The straight line least squares fit.   This function is equivalent to @POLYFIT(X, Y, 1).  

@LLS(A, Y) -
The linear least squares solution X to the   over-determined system of equations AX=Y.

@MMUL(M1, M2) -
The product of multiplying matrix   M2 by matrix M1.

@PLS(X, Y, d) -
Analyzes the least squares polynomial   model Y=P(X), where P is a polynomial of degree d.

@POLYCOEF(X, Y, d) -
The least squares coefficients for   the polynomial fit Y=P(X), where P is a polynomial of degree d.

@POLYFIT(X, Y, d) -
The least squares polynomial fit,   given a vector of independent variables (X), dependent variables (Y), and the degree (d) of polynomial.

@TRANSPOSE(M) -
The transpose of matrix M.  

@TREND(NX, KX, KY) -
The y values for new x   values given existing x and y values.


Embedded tools should not be contained within other functions or arithmetic operations in a single formula. You may, however, copy, move and format embedded tools just as any other function.


next up previous contents index
Next: 7.12 Using NExS Built-in Up: 7.11 Quick-Reference Guide to Previous: 7.11.9 Miscellaneous Functions

NExS User's Guide, Version 1.4.5
Grey Trout Software
11 April 1999