Shell script for combinations ncr, Programming Languages

Assignment Help:

 Find nCr.

 Program

echo -e  "Enter n: \c"

read n

echo -e "Enter r: \c"

read r

i=2

nf=1

temp=`expr $n - $r`

tf=1

rf=1

ncr=1

while test $i -le $n

do

   nf=`expr $nf\*$i`

   i=`expr $i + 1`

done

 

nf=`echo "$nf" | bc`

i=2

while test $i -le $temp

do

  tf=`expr $tf\*$i`

  i=`expr $i + 1`

done

tf=`echo "$tf" | bc`

 

i=2

while test $i -le $r

do

  rf=`expr $rf\*$i`

  i=`expr $i + 1`

done

rf=`echo "$rf" | bc`

temp2=`echo "$nf / $tf" | bc`

ncr=`echo "$temp2 / $rf" | bc`

echo "nCr = $ncr"


Output

sh ncr.sh

Enter n: 5

Enter r: 4

nCr = 5

 

sh ncr.sh

Enter n: 9

Enter r: 4

nCr = 126

 

sh ncr.sh

Enter n: 12

Enter r: 5

nCr = 792


Related Discussions:- Shell script for combinations ncr

Higher order differential equations, We'll start this section off with the ...

We'll start this section off with the material which most text books that will cover in this section. We will take the matter from the Second Order chapter and expand this out to n

Pop game application , In this exercise you will develop a small 'Pop Game'...

In this exercise you will develop a small 'Pop Game' in which the user will "pop" shapes that are drawn on the screen. The game will be time based, showing a shot clock at the top

Linear time algorithm to find longest repeat prefix, A non-empty string β i...

A non-empty string β is called a repeat pre x of a string s if ββ is a pre x of s. Give a linear time algorithm to find the longest repeat prefix of s. Hint: Think of using lca

Advantages of java stored procedures, Advantages of java stored procedures ...

Advantages of java stored procedures Transactions Although a saved process contains SQL orders, once collected it will socialize with SQL Hosting server very diversely from

Program for adding a course in the website of a university, 1. You are work...

1. You are working as a designer for a university that offers a program in Computer Science. One of the tracts is computer security. One of your colleagues has recommended adding a

Asp.net support for ajax and javascript intellisense, ASP.NET Support for A...

ASP.NET Support for AJAX and JavaScript IntelliSense IntelliSense for Enthusiasm JScript makes it accessible client-script selection components in the value manager in Vision Facil

Shell script, program for pyramid in shell script

program for pyramid in shell script

Mvc framework, MVC Framework The ASP.NET MVC Structure is a web program fra...

MVC Framework The ASP.NET MVC Structure is a web program framework that tools the model-view-controller (MVC) design. According to ASP.NET, it allows application designers to devel

Real distinct eigenvalues, Real Distinct Eigenvalues Under this case w...

Real Distinct Eigenvalues Under this case we'll have the real, distinct eigenvalues l 1 ≠l 2 ≠l 3 a and their related eigenvectors, ?h 1 , ?h 2 and  ?h 3   are guarantee

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd