K.S. Kölbig and J. Shiers CN/ASD
D705 RFSTFT: Real Fast Fourier Transform
A new subroutine subprogram D705 RFSTFT (Real fast Fourier transform) written in Fortran, which calculates the finite Fourier transform of a periodic sequence (with a period equal to a power of two) of real numbers and its inverse, has been submitted to MATHLIB. This subroutine subprogram replaces D703 RFFT in KERNLIB, which thus becomes obsolete. The old routine will be left in KERNLIB for a few months and will then be deleted.
D706 CFSTFT: Complex Fast Fourier Transform
A new subroutine subprogram D706 CFSTFT (Complex fast Fourier transform) written in Fortran, which calculates the finite Fourier transform of a periodic sequence (with a period equal to a power of two) of complex numbers and its inverse, has been submitted to MATHLIB. This subroutine subprogram replaces D704 CFFT in KERNLIB, which thus becomes obsolete. The old routine will be left in KERNLIB for a few months and will then be deleted.
V131 RN3DIM: Random Two- and Three-Dimensional Vectors
A new subroutine subprogram V131 RN3DIM (Random two- and three-dimensional vectors) written in Fortran, has been submitted to MATHLIB. It is called by
CALL RN2DIM(X,Y,XLONG)for two-dimensional, and by
CALL RN3DIM(X,Y,Z,XLONG)for three-dimensional vectors. Thus RN3DIM is called as V130 RAN3D, that is each call returns a random three-vector whose length is XLONG. The only difference is that RAN3D calls V104 RNDM underneath, and V131 RN3DIM (RN2DIM) calls V115 RANLUX. Therefore initialization of RN3DIM (RN2DIM) is performed by initializing RANLUX.
CALL RNHPRE(Y,N)where Y is an array of length N giving the histogram bin contents on entry, and returning the array in cumulative form as required by RNHRAN. A random number XRAN is then generated by:
CALL RNHRAN(Y,N,XLO,XWID,XRAN)where XLO and XWID specify the histogram binning.
DIMENSION FSPACE(200) DIMENSION XRAN(L) EXTERNAL F CALL FUNLXP(F,FSPACE,XLOW,XHIGH) !to prepare FSPACE CALL FUNLUX(FSPACE,XRAN,L) !to generate L numbers XRANSubprograms V131 RN3DIM, V149 RNHRAN and V152 FUNLUX replace older subprograms for the generation of random numbers, which thus become obsolete.
The following packages are declared obsolete and scheduled for eventual deletion:
|A105||MPA||MATHLIB||1985||Use, e.g., Mathematica|
|D114||RIWIAD||MATHLIB||1986||Use D120 RADMUL (in part)|
|D151||DIVON4||MATHLIB||1985||Use D120 RADMUL (in part)|
|D703||RFFT||KERNLIB||1981||Use D705 RFSTFT|
|D704||CFFT||KERNLIB||1981||Use D706 CFSTFT|
|V130||RAN3D||MATHLIB||1978||Use V131 RN3DIM|
|V150||HISRAN||MATHLIB||1978||Use V149 RNHRAN|
|V151||FUNRAN||MATHLIB||1984||Use V152 FUNLUX|
The following package was declared obsolete and is finally deleted from the source and binary with this revision:
|C307||CDIGAM||MATHLIB||CNL 221||Use C317 CPSIPG|