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Fortran Programming Language

question about logarithm in fortran


hi every body
i have  2 questions
1) what is the benefit "allocate array " comparative to
ordinary array ?

2) in program i need to compute logarithm (log(x)) .
but Intrinsic function in  fortran  gives natural logarithm  of the
argument (Ln(x)) . what is the best way to find
log ?
best ,nakisa

"nakisa" <nakisa.noor@gmail.com> wrote in message

news:1179682764.954998.169060@36g2000prm.googlegroups.com...

> 1) what is the benefit "allocate array " comparative to
> ordinary array ?

An allocated array has the advantage that it is 'dynamic'. Thus, it's size
can be determined and used at run time. An 'ordinary' array (I assume you
mean with fixed bounds) has a size that is fixed at compile time. Thus, if
you need  different bounds, the program has to be recompiled.

> 2) in program i need to compute logarithm (log(x)) .
> but Intrinsic function in  fortran  gives natural logarithm  of the
> argument (Ln(x)) . what is the best way to find
> log ?

log10 (MR&C, p. 163).

Regards,

Mike Metcalf

thanks Mike  of your help

best,nakisa

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