Arithmetic on a Float in bash Post: 302958636

10 More Discussions You Might Find Interesting

1. Programming

math.h: float ceilf(float x)

Good morning, I'm testing the use of ceilf: /*Filename: str.c*/ #include <stdio.h> #include <math.h> int main (void) { float ceilf(float x); int dev=3, result=0; float tmp = 3.444f; printf("Result: %f\n",ceilf(tmp)); return 0; }

2. Shell Programming and Scripting

float input

how to input float data type in bash shell programming in linux? I am new to it so unaware to use the commands plz help me out. thank you.

3. Shell Programming and Scripting

Need help is manipulating a file with some arithmetic operations using bash script

Friends, I have a file with contents like: interface Serial0/4/0/0/1/1/1/1:0 encapsulation mfr multilink group 101 Now I need to manipulate the file in such a way that to all the numbers less than 163, 63 gets added and to all numbers greater than 163, 63 gets deducted.(The numbers...

4. Shell Programming and Scripting

Arithmetic operations in bash,ksh,sh

Guys, The below expression is valid in which shells (sh,ksh,bash,csh)? VAR1=2 VAR2=$(($VAR1 -2)) Thanks

5. Shell Programming and Scripting

float to normal

I have a file with 2 columns . One of the line looks like the following. Is it possible to convert every float no in column 2 to integer. input NM_032881 6.03787973608527e-05 output 0.0000603787.....

6. Shell Programming and Scripting

Random float numbers in BASH

Hi people :) I'm learning shell scripting using bash and I want to generate 4 floating point number with 5 decimal places and write them to a file and a variable. I've done all this except the $RAMDOM enviroment variable does not generate a float number but a integrer. I hope you could...

7. Red Hat

What is float IP?

:confused:We have two servers one active and one stand by as follows Active 202.61.9.9 Stand by 202.61.9.10 Float IP 202.61.9.8 What is use of this float IP? How it is configured?

8. Shell Programming and Scripting

Arithmetic calculations in bash file

I have 2 numbers xmin = 0.369000018 xmax = 0.569000006 and want to calculate (xmax- xmin) / 5.0 I have tried using $(( )) but is always giving an error

9. Shell Programming and Scripting

Bash arithmetic issue

I found the following issue by simply increasing a variable. The ((A++)) expression returns an error, the other expressions both return 0. Does anyone know why? script.sh: #! /bin/bash A=0 B=0 C=0 ((A++)) ; echo "${?}" ((B=B+1)) ; echo "${?}" ((C+=1))...

10. Shell Programming and Scripting

Arithmetic with bash

I need to divide the number of white spaces by total number of characters in a file using bash. I am able to get the number of white spaces correctly using: tr -cd �� < afile | wc -c I am also able to get the total number of characters using: wc -c afile How do I divide the first...

LEARN ABOUT ULTRIX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Programming

math.h: float ceilf(float x)

Discussion started by: jonas.gabriel

2. Shell Programming and Scripting

float input

Discussion started by: purva

3. Shell Programming and Scripting

Need help is manipulating a file with some arithmetic operations using bash script

Discussion started by: shrijith1

4. Shell Programming and Scripting

Arithmetic operations in bash,ksh,sh

Discussion started by: rprajendran