raising a number to an exponent

[p3aul]

how do I do this? I have a variable of type double I would like to raise it to an exponent, also of type double. I have tried pow(base: double, exp: double) and power(base: double, exp: double). I have used lower case and I have tried capitalizing the first letter(although it shouldn't matter in Delphi). I still get that red wiggley line and a hint that says Undeclared Itentifier. I just tried a "Uses" Math in the Uses clause. That didn't work either.
Thanks,
Paul

The Bad News: Time Flies
The Good News: You are the Pilot

 

[whosrdaddy]

try:

 a := x^y;

the Math Power() function should be functioning though, what version of delphi are you using?

-----------------------------------------------------
What You See Is What You Get
Never underestimate tha powah of tha google!

 

[p3aul]

Well I finally got Power() to work so that's the one I nee!
Thanks,
Paul

The Bad News: Time Flies
The Good News: You are the Pilot

 

[Duoas]

a := x^y;

What?

 

[lespaul]

 a := x^y;

found this information:
[tt]Some computer languages have a power operator that raises a value to a power. In Fortran for example the operator is ** as in 2.0**3.0 which returns 8.0. Ada also uses the ** notation and Basic uses the ^ symbol. For some reason, Pascal and C do not include this operator. That is particularly odd because Algol60, which was the ancestor of both, did have a power operator, (^). For years, the solution in Pascal has been to use a function usually given as
function Power(x, y :extended) : extended; begin result := exp(y*ln(x)); end;
The problem with that easy answer is that this function will fail (raise an exception) for a negative base value.[/tt]

quoted from:

http://dn.codegear.com/article/20026

Leslie

Have you met Hardy Heron?

 

[whosrdaddy]

sorry, was mixing up some languages. I'm still trying to remember where I used this syntax, but it could be from my commodore 64 days.


/daddy

-----------------------------------------------------
What You See Is What You Get
Never underestimate tha powah of tha google!

 

[Duoas]

LOL! I figured it was something like that.

Lately I've been typing Pascal into C++ forums...


In Pascal [tt]foo^[/tt] is the dereference operator.

[tt][small]void do_something( x, y: integer )[/small][/tt]

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