Very simple if you know but hard if you don't

[Debeast]

Hi there,

I have some simple q's for anyone that does know about fortran . Unfortunately i do not

My question are:

Q1) What does 2.* varname mean?

I understand its 2 times the variable but what is the full stop for/do?

Q2) What does (Dabs(y/dy).lt.tol) actaully mean?

Is dabs an array or is a * implicit in the declaration. Again what are the full stops?

Very many thanks for anyone that helps

/n

 

[GerritGroot]

Q1) Possibly the variable after the 2.* is an integer.
If a real is desired (float) conversion is sometimes done by multiplying by 2. which is a real in stead of by 2 which is an integer.
Q2)I think you need a fortran manual

http://www.star.le.ac.uk/~cgp/prof77.html

 

[Debeast]

Thanks

q1) i think is sorted and the . after 2 indeed means its a real number

q2) been looking through manuals but am still at a loss Shall look through this one too. Anyone elses help would be great

thanks

/n

 

[Debeast]

Just in case anyone else ever needs this

.LT. = Less than

Dabs = an intrinsic fortran function

problem solved woot

/n