how can i find sqrt of a any number without using expr Post: 302307527

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1. Programming

sqrt

Hi! when i'm trying to compile this lite example on my linux machine I'll get errors and i don't know why.. #include <stdio.h> #include <math.h> /* needed by sqrt() */ int main() { printf("%f", sqrt(10.0)); return (0); } this is the error: /tmp/cc33hNVHK.o: In function...

2. Programming

sqrt is not find???

I was writing a simple program in linux, which includes sqrt function of c. I included the math.h. But when I use gcc to compile it, it gave an error message: /home/murat/tmp/ccOv9upo.o(.text+0x4b): In function `main': : undefined reference to `sqrt' collect2: ld returned 1 exit status I...

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HI, I have a file which i catenate and using the fields in the file, I would like to get sqrt of it. I tried to man the function but it normally would need an echo as well as bc. What I am intending to find out is catenate a file where let say cat a.txt| awk ' { t= h*($3+$2); t=...

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Find first digit in string using expr index

I have looked for hours for an answer, so I have decided to request your guidance. I want to substract the first number (series of digits) contained in a string. This string is the output of another command. The substring (number) can be located at any position inside the string. I want to...

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C Library reference error using sqrt() - will not compile.

This so basic that it should work.... Any ideas would be appreciared. Using a number directly in the sqrt allows it to compile. primrose > cat a.c #include <stdio.h> #include <math.h> int main(void) { double abcd=9; printf("%f\n",sqrt(abcd)); } primrose > gcc a.c Undefined first...

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sqrt in bash

Hi, i have a the following script: #!/bin/bash a=3 b=9 let "c= b*a" let "d=sqrt $c " echo $d But when i execute the code, it gives me the an error saying: line 5: let: d=sqrt 27 : syntax error in expression (error token is "27 ") Can any body tell me what I'm doing wrong?

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Find command - using regular expr

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awk to find number in a field then print the line and the number

Hi I want to use awk to match where field 3 contains a number within string - then print the line and just the number as a new field. The source file is pipe delimited and looks something like 1|net|ABC Letr1|1530||| 1|net|EXP_1040 ABC|1121||| 1|net|EXP_TG1224|1122||| 1|net|R_North|1123|||...

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Q: Is SQRT(n) possible in a POSIX compliant shell? A: Yes within limits.

Hi all... This is just a fun project to see if it is possible to get a square root of a positive integer from 1 to 9200000 to 6 decimal places on a 64 bit architecture machine. It is coded around dash and the results show the values from 0 to 10000. Complex numbers can easily be catered for by...

LEARN ABOUT DEBIAN

sdl::color

pods::SDL::Color(3pm)					User Contributed Perl Documentation				     pods::SDL::Color(3pm)

NAME

       SDL::Color - Format independent color description

   CATEGORY
       Core, Video, Structure

SYNOPSIS

	my $black = SDL::Color->new(0, 0, 0);
	my $color = SDL::Color->new(255, 0, 0);
	my $r = $color->r; # 255
	my $g = $color->g; # 0
	my $b = $color->b; # 0
	$color->g(255);
	$color->b(255);
	# $color is now white

DESCRIPTION

       "SDL_Color" describes a color in a format independent way.

METHODS

   new
	my $color = SDL::Color->new(255, 0, 0);

       The constructor creates a new color with the specified red, green and blue values.

   r
	my $r = $color->r;
	$color->r(128);

       If passed a value, this method sets the red component of the color; if not, it returns the red component of the color.

   g
	my $g = $color->g;
	$color->g(128);

       If passed a value, this method sets the green component of the color; if not, it returns the green component of the color.

   b
	my $b = $color->b;
	$color->b(128);

       If passed a value, this method sets the blue component of the color; if not, it returns the blue component of the color.

SEE ALSO

       SDL::Surface

AUTHORS

       See "AUTHORS" in SDL.

perl v5.14.2							    2012-05-28						     pods::SDL::Color(3pm)

10 More Discussions You Might Find Interesting

1. Programming

sqrt

Discussion started by: CreamHarry

2. Programming

sqrt is not find???

Discussion started by: murataht

3. Shell Programming and Scripting

How to create SQRT function in catenate file

Discussion started by: ahjiefreak

4. Shell Programming and Scripting

Find first digit in string using expr index

Discussion started by: jcd