# Re: blank in assignment Fortran IV

• From: none <none@xxxxxxxx>
• Date: Thu, 05 Nov 2009 00:40:55 +0000

On Wed, 04 Nov 2009 06:27:05 +0000, Alexandros Droseltis wrote:

Hello!

I am studying an ancient source written in Fortran IV (it is the
programme "Free Stochastic Music" by Xenakis in [1]) and I do not
understand the blank in the following line of code:

HX=HINF+HM*X RANF(-1)

By reading the theoretical text, I assume that RANF(-1) should be a
random number in [0,1). Also I assume by reading the theoretical text,
that HX should be a random number between HINF and HINF+HM.
Compiling the code with g95 and using a random number, say TEMP,
instead of RANF(-1), I always get for HX the value HINF and not what I
expect (that is a random number between HINF and HINF+HM). Could
someone please explain what the above assignment in Fortran IV means? I
would be grateful.

Best Regards

Alexandros

[1] Iannis Xenakis, Formalized Music; Thought and Mathematics in
Composition, Pendragon Press, Stuyvesant New York

Would any of these help?

xranf: A random number in range -1 .. +1

xranf: random number in range 0 .. 1

xranf: random integer in range 0 .. (argument value)
lss.fnal.gov/archive/other/mura/MURA-580.pdf
This would make -1 a 'funny' number

xranf: random number in range 0 .. 1

.

## Relevant Pages

• Re: blank in assignment Fortran IV
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• Re: blank in assignment Fortran IV
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• Re: blank in assignment Fortran IV
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• Re: blank in assignment Fortran IV
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