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INVDFT

Syntax: INVDFT(R)

R = a range

INVDFT generates the inverse Discrete Fourier Transform of the range R. Like DFT, R must represent a real vector (either its row or column dimension must be 1), or a complex vector (either its row or column dimension must be 2). The result is always a complex vector.

Examples:

  A B
1 0.99 0
2 3 6.2
3 4.1 1.1
4 3.3 6.3
     

With INVDFT(A1..B4) in B6 gives:

  B C
6 2.8475 3.4
7 -0.8025 -0.2
8 -0.3025 -2.85
9 -0.7525 -0.35
     

INVDFT(G4..I6) = Error - INVDFT, improper dimensions

Excel function: N/A


next up previous contents index
Next: INVERT Up: A. Function Reference Previous: INTRATE   Contents   Index
SpreadScript User's Guide, Version 1.2
Grey Trout Software
02 March 2003