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Geek Culture / C Question

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Dave J
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Posted: 19th Aug 2003 16:55
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Just wondering if anyone know the Exponential/Power of Operator for C or C++, Perl is typically ** and naturally I thought it was the same until recently I've been proven incorrect. Anyone know the correct operator? Thanks.
"Computers are useless they can only give you answers."
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actarus
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Posted: 19th Aug 2003 17:12 Edited at: 19th Aug 2003 17:12
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Maybe is it '*'

If I've seen it all before,why's this bus taking me back again? @_@
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Kentaree
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Posted: 19th Aug 2003 17:26
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No, * is multiply, the to the power of function is contained it the <math.h> or the <cmath> library (dependant on your c++ compiler) and the command is pow(value, power) so pow(3, 4) would give 3 to the power of 4 which is 81. Hope this helps.

Cheers,
Kentaree

Whatever I did I didn't do it!
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actarus
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Posted: 19th Aug 2003 17:27
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I wasn't expecting to be right

If I've seen it all before,why's this bus taking me back again? @_@
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Shock
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Posted: 19th Aug 2003 22:56
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hmm, i always thought it was ^

then again ive never had to use it


Sticking feathers up your butt doesn't make you a chicken.
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MikeS
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Posted: 20th Aug 2003 05:18
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Yea, I always though it was ^. That's what it is for db isn't it? Well, its worth a try.



A book? I hate book. Book is stupid.
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Shadow Robert
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Posted: 20th Aug 2003 06:48
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depends what your doing...
x^y is standard maths for ALL languages because its the standard mathematics not programming operator.
you can also use y=exp(x) but that is just exponencial of 2 or squared.

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John H
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Posted: 20th Aug 2003 06:50
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Raven where were you!

Current Project: Eternal Destiny
Porting all files to my new computer
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Dave J
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Posted: 20th Aug 2003 10:33
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Quote: "No, * is multiply, the to the power of function is contained it the <math.h> or the <cmath> library (dependant on your c++ compiler) and the command is pow(value, power) so pow(3, 4) would give 3 to the power of 4 which is 81. Hope this helps."

Thanks, that works

Oh and ^ is for most calculators and like Raven said, is used for Mathematics but unfortunately I'm yet to see a programming language use it as the exponential operator (except DB(P))

"Computers are useless they can only give you answers."
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Shadow Robert
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Posted: 20th Aug 2003 13:58
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i've yet to see a programming language that doesn't...

BB uses it, PureBasic uses it, iBasic uses it, C uses it, C++ uses it, Pascal uses it, Fortran uses it, Cobol uses it - its only the extremely basic languages that don't.

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Rob K
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Posted: 20th Aug 2003 14:14 Edited at: 20th Aug 2003 14:16
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@Raven

The ^ operator doesn't do exponential in Pascal

The ^ operator is used to dereference a pointer.

In Delphi there is a Power function - Power(3,3) will return 27.

The ^ operator does work in all BASICs AFAIK though.


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DSG
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Posted: 21st Aug 2003 03:34
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The '^' operator performs a bitwise XOR in C/C++.

Danny Gregory
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Dave J
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Posted: 22nd Aug 2003 12:55
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^ doesn't work for the following either:

Visual Basic
PHP
Perl
ASP

o_O

"Computers are useless they can only give you answers."
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Shock
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Posted: 24th Aug 2003 14:23
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na, c is easy. well, so long as you don't try and do something difficult.

i learnt how to do a couple of things in c (in dos), like making text adventure games, or very simple text editors with windows style buttons, etc. just don't expect to make anything better than that within half a year of learning it. certainly don't expect to create 3d shoot em ups

i got bored of c after a while, because i couldnt really go any further than the text advernture games (maybe i could if i used visual c++ or something similar, for windows), so i went on the hunt for a programming lingo that would let me do great stuff very easy.

hence i ended up here. i can tell you something, after learning the basics of c, if you then learn dbc, you'd end up learning how to make a first person shooter within a day. i made my first fps within about 8 hours of getting dbc through the door


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Dave J
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Posted: 24th Aug 2003 16:59
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Console C++ is fairly easy but once you get into Win32 it starts to get a bit trickier. Then harder still with OpenGL/Direct3D.

"Computers are useless they can only give you answers."
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