Math Header?

Is there a math header file for math functions?

I mean like a math.h file or something.

And I mean functions like 7 to the 5th power type stuff or other math functions you wouldn't be able to do other wise.



Edit: Before anyone corects me....

I mean you could do that but a math header with that function would make it eisier.

Yeah, its called
#include <cmath>

rally now? I'll go and mess with that then. Thanks alot!

Where can I get the functions list and all of that tho. Sopme reason my dev-cpp help files don't have any of that.

http://www.cplusplus.com/ref/cmath/

Google for math.h
First result

[edit]Also, google for cmath; first and second results.[/edit]

oh I had use the bathroom but I'm back. I just did a google and looking at stuff.

Quote:

---

Originally Posted by Rune Hunter

oh I had use the bathroom but I'm back.

---

Thanks for the info, but this isn't a chat room.
No one will notice if you're away for 13 minutes. :)

There are extensions to cmath in the standard, for example <complex> if you need to do calculations with complex numbers, or <valarray> if you need vectors.

Here's another math func. ref. http://cppreference.com/stdmath.html

thanks, but I am going to look into Delphi code for a little bit.

Quote:

---

Originally Posted by Rune Hunter

thanks, but I am going to look into Delphi code for a little bit.

---

Tired of c++ already grasshopper?

No not tired. I just heard delphi could very simplily create win 32 apps...but I guess not. Sence my compiler don't even work and a bunch of crap like that. But I am using game maker right now (wich was made from delphi)


And I think I am more of a Cricket.

Quote:

---

And I think I am more of a Cricket.

---

Haven't you heard the story of the ants and the grasshoppers?

If you want to create Windows Apps quickly and easily look into C# or use the .NET namespaces with C++.

lol I looked at c# already. .net namespaces? I do think that would be just amout of work if it is what I think it is.


uhh...what is .net namespaceing? tut please...

Quote:

---

Haven't you heard the story of the ants and the grasshoppers?

---

Yes I have, mor then once but... I have also heard "Try different things". And I am trying different code.

.NET is a microsoft thing. You probably need MSVC++ as I dont know of any othe compiler supporting .NET.

What .NET is is a different kind of "framework" for building win32 apps.

I know at first the WinAPI is really scary but just keep trying it every once in a while.
What ever you do do not constantly keep messing with it or it will drive you bonkers. Just try it every now and then and eventually you will get it.

yah maybe.

Oh and I downloaded and installed .net fram work. I needed it for a think called HEK (Halo Editing Kit).

Couldn't you just write a short recursive function to handle "power of" math calls.

Code:

---

long PowerOf(long Base_Number, long Power_Of)
{
    long tmp=0;
    static long counter;
    while(Power_Of<=counter)
    {
        counter++;
        tmp=Base_Number*(counter);
        Power_Of--;
        tmp=PowerOf(tmp,Power_Of);;
    };           
    return tmp;
}

---

(I know this code has flaws)

>>I needed it for a think called HEK
:rolleyes: Another .NET sellout. Did you know I couldn't even install my HP printer drivers on my older computer because it didn't have .NET installed? :mad:

**EDIT**
>>Couldn't you just write a short recursive function to handle "power of" math calls.
a) Why rewrite the standard math library?
b) How would you compute fractional powers by this method?

Couldn't you just do a bit of code modification and change out the "long" parameters for "float"?

Also, if you aren't interested in the bloat of including more headers files this should help. Or for the novelty, of I don't know, writing something yourself...

I wasn't suggesting it was the be all/end all. Just an alternative. An idea.

Quote:

---

long PowerOf(long Base_Number, long Power_Of)
{
long tmp=0;
static long counter;
while(Power_Of<=counter)
{
counter++;
tmp=Base_Number*(counter);
Power_Of--;
tmp=PowerOf(tmp,Power_Of);;
};
return tmp;
}

---

don't know what that would do...

>>Couldn't you just do a bit of code modification and change out the "long" parameters for "float"?
No. Because the power-ing is done by whole numbers. An interesting idea though, to do it with recursion... I would have just stuck it in a for loop ;)

using recursion in the place of a simple for loop is not interesting, its slow and clumsy.

You know I didn't even think of putting it in a loop... :D

Recursive power function:

if 'base' is zero, then 'exp' must be positive

Code:

---



double power( double base, int exp) 
{
      if (base == 0)  //base is zero, and exp should be positive

          return 0;

      else if (exp == 0)

          return 1;

      else if (n > 0) 
     
          return base * power(base, exp - 1);

      else  //base is nonzero, and exp is negative

          return  1/power(base, -exp);

}

---

so can you explain what this does and how to use it if it will help me please?

>>so can you explain what this does and how to use it if it will help me please?
It is a recursive function: It calls itself with changing parameters in order to accomplish the task. And it isn't useful to you at all, since <cmath> includes a pow() function ;)

oh lol yes I have already used the pow function for my calculator.

Quote:

---

Originally Posted by Hunter2

>>so can you explain what this does and how to use it if it will help me please?
It is a recursive function: It calls itself with changing parameters in order to accomplish the task. And it isn't useful to you at all, since <cmath> includes a pow() function ;)

---

sometimes i get joy out of bludgeoning a fly with a hammer ;)