Rounding off the value of Floating point value

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Rounding off to the nearest floating number

I have a number, which I want to convert into the nearest floating number upto two places after the decimal point. E.g. 1.2346 will become 1.23 but 1.2356 will become 1.24 . Similarly 0.009 will be 0.01 and 0.001 will be 0.00 or 0.0 (not 0, wnat to keep the decimal...

2. Programming

Floating Point

Anyone help me i cant found the error of floating point if needed, i added the code complete #include <stdio.h> #include <string.h> #include <stdlib.h> #include <ctype.h> typedef struct { int hh; int mm; int ss; char nom; int punt; }cancion; typedef struct...

3. Shell Programming and Scripting

awk, floating point and rounding

I had a person bring an interesting problem to me that appears to involve some sort of rounding inside awk. I've verified this with awk and nawk on Solaris as well as with gawk 3.1.5 on a Linux box. The original code fragment he brought me was thus: for (index=0; index < 1; index=index+.1) ...

4. Shell Programming and Scripting

floating point numbers in if

# if > then > echo "1" > else > echo "2" > fi -bash: How can i compare floating point numbers inside statement?

5. Shell Programming and Scripting

how to compare 2 floating point no.

Hi, Could any one tell me how to compare to floating point no. using test command. As -eq option works on only intergers. i=5.4 if then echo "equal" else echo "not equal" fi here output will be equal even though no. are unequal. Thanks, ravi

6. Programming

Floating point Emulator

what is floating point emulator(FPE)? where and why it is used?

7. Linux

Floating Point Exception

Hi, I am compiling "HelloWorld" C progam on 32-bit CentOS and i want to execute it on 64-bit CentOS architecture. For that i copied the a.out file from 32-bit to 64-bit machine, but while executing a.out file on 64bit machine I am getting "Floating point exception error". But we can run...

8. Programming

Floating point error in C

Hi, see the simple code below double i; i=8080.9940; printf(" val :%.30f\n",i); output i m getting is val :8080.993999999999700000000000000 when i m expecting val :8080.9940 what happens?how can i avoid it? thanks...

9. Programming

floating point problem

Hi all! Hi all! I am working with a problem to find the smallest floating point number that can be represented. I am going in a loop ,stating with an initial value of 1.0 and then diving it by 10 each time thru the loop. So the first time I am getting o.1 which I wanted.But from the next...

10. Shell Programming and Scripting

floating point addition

hi, :) I have a file like this 10.456 123.567 456.876 234.987 ........ ....... What i want to do is ia have to add all those numbers and put the result in some other file. Any help pls. cheers RRK

LEARN ABOUT SUNOS

fegetprec

fesetprec(3M)						  Mathematical Library Functions					     fesetprec(3M)

NAME

       fesetprec, fegetprec - control floating point rounding precision modes

SYNOPSIS

       cc [ flag... ] file... -lm [ library... ]
       #include <fenv.h>

       int fesetprec(int prec);

       int fegetprec(void);

DESCRIPTION

       The  IEEE  754  standard  defines rounding precision modes for systems that always deliver intermediate results to destinations in extended
       double precision format. These modes allow such systems to deliver correctly rounded single and double precision results (in the absence of
       underflow and overflow) with only one rounding.

       The  fesetprec() function sets the current rounding precision to the precision specified by prec, which must be one of the following values
       defined in <fenv.h>:

       FE_FLTPREC      round to single precision

       FE_DBLPREC      round to double precision

       FE_LDBLPREC     round to extended double precision

       The default rounding precision when a program starts is FE_LDBLPREC.

       The fegetprec() function returns the current rounding precision.

RETURN VALUES

       The fesetprec() function returns a non-zero value if the requested rounding precision is established and 0 otherwise.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       |Architecture		     |Intel (see below) 	   |
       |Availability		     |SUNWlibms 		   |
       |Interface Stability	     |Stable			   |
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

       These functions are not available on SPARC systems because SPARC processors deliver intermediate results to destinations in single or  dou-
       ble format as determined by each floating point instruction.

SEE ALSO

       fegetenv(3M), fesetround(3M), attributes(5)

       Numerical Computation Guide

SunOS 5.10							    1 Oct 2003							     fesetprec(3M)

Shell Programming and Scripting