some math problems in C Post: 302132722

8 More Discussions You Might Find Interesting

1. Programming

math.h not working? o.0

Alright, umm i cant get this to work. im looking at some example and a book i have. when i try to compile my program i get an error message. ld: 0711-317 ERROR: Undefined symbol: .sqrt ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more information. I did #include<math.h> after my...

2. Programming

something about <math.h>

Hi, I got an easy problem for you but really difficult for me 'cause I am pretty new to this field I got header file <math.h> included in my .c file , then I write the code as below: k = sqrt(i); /* both variables k and i are int */ then I cc temp.c it says like this undefined...

3. UNIX for Dummies Questions & Answers

math in unix

I have 2 variables a=2 b=1 i want to add a and b how do i do this in unix using just the echo command and by assigning it to a different variable like c?

4. Shell Programming and Scripting

math help

$ x=1 $ y=1.5 $ z=$((x*y)) bash: 1.5: syntax error: invalid arithmetic operator (error token is ".5") What's wrong?

5. Shell Programming and Scripting

Need help with AWK math

I am trying to do some math, so that I can compare the average of six numbers to a variable. Here is what it looks like (note that when I divide really big numbers, it isn't a real number): $ tail -n 6 named.stats | awk -F\, '{print$1}' 1141804 1140566 1139429 1134210 1084682 895045...

6. Programming

Math function with C

I have int miles, yards; float kilometers; float kilometers2; miles = 26; yards = 385; kilometers = 1.609 * (miles + yards / 1760.0); where int/float remains a float. How ever if I change it to kilometers = 1.609 * (miles + yards / 1760); ...

7. UNIX for Dummies Questions & Answers

Linux Math Help

I am struggling with scripting this challenge a friend and I have. You have file1 and its contents is a single number you have file 2 and its contents are a different number you want to add file1 to file2 and have the output be put into file3

8. UNIX for Dummies Questions & Answers

Math

i have file (my_file.txt) that looks like this: 000000000000010000 000000000000010000 000000000000005000 000000000000005000 000000000000005000 000000000000005000 000000000000005000 000000000000005000 000000000000005000 000000000000005000 all said and one, it should look...

LEARN ABOUT SUSE

sdl_joystickopen

SDL_JoystickOpen(3)						 SDL API Reference					       SDL_JoystickOpen(3)

NAME

       SDL_JoystickOpen - Opens a joystick for use.

SYNOPSIS

       #include "SDL.h"

       SDL_Joystick *SDL_JoystickOpen(int index);

DESCRIPTION

       Opens a joystick for use within SDL. The index refers to the N'th joystick in the system. A joystick must be opened before it game be used.

RETURN VALUE

       Returns a SDL_Joystick structure on success. NULL on failure.

EXAMPLES

       SDL_Joystick *joy;
       // Check for joystick
       if(SDL_NumJoysticks()>0){
	 // Open joystick
	 joy=SDL_JoystickOpen(0);

	 if(joy)
	 {
	   printf("Opened Joystick 0
       ");
	   printf("Name: %s
       ", SDL_JoystickName(0));
	   printf("Number of Axes: %d
       ", SDL_JoystickNumAxes(joy));
	   printf("Number of Buttons: %d
       ", SDL_JoystickNumButtons(joy));
	   printf("Number of Balls: %d
       ", SDL_JoystickNumBalls(joy));
	 }
	 else
	   printf("Couldn't open Joystick 0
       ");

	 // Close if opened
	 if(SDL_JoystickOpened(0))
	   SDL_JoystickClose(joy);
       }

SEE ALSO

       SDL_JoystickClose

SDL
							      Tue 11 Sep 2001, 23:00					       SDL_JoystickOpen(3)