Doing simple math for children. Post: 302517257

8 More Discussions You Might Find Interesting

1. Programming

Father & children

Hello, i should finished this program, if anyone could tell me whats wrong... This is an optional university work, though i cant leave this nearly finished. I need to see where is my error :( What my program should do. The user must type "num_proc" ( number of children). The program creates a...

2. UNIX for Advanced & Expert Users

How to follow processes and their children with ps

Hi, I often need to find the child processes of a parent process. There may be a string of 4-5. That is, PPID 884 spawns 890, which spawns 894, which spawns 1017. I'd like to be able to see all of them without having to type in a number of ps -ef commands. Process groups and session ID's are...

3. UNIX for Dummies Questions & Answers

Simple Math question...

Hi All , I'm trying to do a simple math expression ...but unsuccessfull :-( Anyone can help me? days=23 amount=`expr ${days} / 30 \* -125` echo $amount but as result i got 0 when i expect 95.833333 Another question...how i can limit only to two or three decimal fields? Thanks in...

4. Shell Programming and Scripting

Prepend name of directory to children folders

Hi, I am a shell scripting newbie. I am in need of a shell script that will prepend the name of the parent directory to the child directory. For example if the shell script called rename.sh is invoked with ">rename.sh /home/foobar/Simple" and the structure of the folder Simple is : Simple...

5. UNIX for Advanced & Expert Users

Fork() 1 Parent 3 Children

Hi, as I understand fork(), it makes a copy of the parent which becomes a child. But is there anyway to make three children for that one parent. So in other words, if I look up the getppid() of the children, I want them to have the same value?? Thanks in advance to any help!

6. Shell Programming and Scripting

Killing process and children

Hi all, I have been searching all day for a nice solution to this problem. I have three scripts. A start script, a child script and a stop script. Script A (scripta.sh) Its Child Script B (scriptb.sh) Script C (kill_process.sh $PID) Script A correctly traps the kill command sent from...

7. Programming

Multiple children and single pipe

Greetings everyone, I need a bit of help in solving the following problem: I'm given an array of numbers and I have to compute the sum of the array elements using n processes, and the inter process communication has to be done with pipes(one pipe, to be exact). I managed to solve the problem...

8. Shell Programming and Scripting

pstree but without other children of ancestors

Hi, I want to display the process tree of a given PID, however, I don't want to see other children of the ancestors that don't reach the current PID. My goal is, from the tree result, i have to fetch a particular parent process by keyword, and if any other children from parents have the same...

LEARN ABOUT REDHAT

math

math(n) 							 Tcl Math Library							   math(n)

NAME

       math - Tcl Math Library

SYNOPSIS

       package require Tcl 8.2

       package require math ?1.2?

       ::math::cov value value ?value ...?

       ::math::integrate list of xy value pairs

       ::math::fibonacci n

       ::math::max value ?value ...?

       ::math::mean value ?value ...?

       ::math::min value ?value ...?

       ::math::prod value ?value ...?

       ::math::random ?value1? ?value2?

       ::math::sigma value value ?value ...?

       ::math::stats value value ?value ...?

       ::math::sum value ?value ...?

DESCRIPTION

       The math package provides utility math functions.

COMMANDS

       ::math::cov value value ?value ...?
	      Return the coefficient of variation expressed as percent of two or more numeric values.

       ::math::integrate list of xy value pairs
	      Return the area under a "curve" defined by a set of x,y pairs and the error bound as a list.

       ::math::fibonacci n
	      Return the n'th Fibonacci number.

       ::math::max value ?value ...?
	      Return the maximum of one or more numeric values.

       ::math::mean value ?value ...?
	      Return the mean, or "average" of one or more numeric values.

       ::math::min value ?value ...?
	      Return the minimum of one or more numeric values.

       ::math::prod value ?value ...?
	      Return the product of one or more numeric values.

       ::math::random ?value1? ?value2?
	      Return a random number.  If no arguments are given, the number is a floating point value between 0 and 1.  If one argument is given,
	      the number is an integer value between 0 and value1.  If two arguments are given, the number is an integer value between value1  and
	      value2.

       ::math::sigma value value ?value ...?
	      Return the population standard deviation of two or more numeric values.

       ::math::stats value value ?value ...?
	      Return the mean, standard deviation, and coefficient of variation as percent as a list.

       ::math::sum value ?value ...?
	      Return the sum of one or more numeric values.

KEYWORDS

       math, statistics

math									4.2								   math(n)