[cpro]

I'm trying to compute the cosh and sinh of a dimensionedScalar, and it won't accept the arguments. Here is my code:

forAll(M,celli){
Argument = fitParameter*H[celli].x()/T[celli];
M[celli].x()=Msat*(cosh(Argument)/sinh(Argument));
}

"Argument" is a dimensioned scalar, and "M" is a volVectorField. I get the error "cannot convert 'Foam::dimensioned<double>' to 'double' in assignment" on the second line of code.

Two questions:
(1) Is there a way to perform cosh et al on a vector or field? From the documentation, it looks like it only accepts scalars, but I'm not sure.

(2) How can I solve the issue? Argument.value() doesn't seem to work, and using a const dimensionedScalar doesn't make sense with my problem.

I really appreciate your help. Thanks!

[Lieven]

It is not allowed to compute the cosh or sinh of a dimensioned numer. Just this about it, what would be the meaning of

scalar cosFive = cos(5 m/s)

cosh or sinh are no exception for this.

For your case, you could use

 cosh(Argument.value())/sinh(Argument.value())

to solve this.

Cheers,

L

[cpro]

Originally Posted by Lieven

It is not allowed to compute the cosh or sinh of a dimensioned numer. Just this about it, what would be the meaning of

scalar cosFive = cos(5 m/s)

cosh or sinh are no exception for this.

For your case, you could use

 cosh(Argument.value())/sinh(Argument.value())

to solve this.

Cheers,

L

Thank you for your suggestion. However, when I try using Argument.value(), I get this error: "overloaded function cosh(double&) is ambiguous. Candidates are double cosh(double)."

What does the "double&" mean, and does anyone have any suggestions for how to solve this?

[Lieven]

Ok, try adding 'Foam::' :

Foam::cosh(Argument.value())/Foam::sinh(Argument.value())

Cheers,

L

[cpro]

That worked! Thank you, Lieven