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

Windows card space, Windows Card Space Windows Card Space (codenamed Info C...

Windows Card Space Windows Card Space (codenamed Info Card), is Windows now-canceled customer application for the Identification Met system. Card Place is an instance of a class of

Brent''s method, This is what I have so far def root_brent(f, a, b, errorl...

This is what I have so far def root_brent(f, a, b, errorlimit = tinyerror, n = -1, r_i = 0): # f(a) and f(b) must have opposite signs poly = remove_multiple_roots(poly) counter

Python: returning one dimensional list from strings , How to build one dime...

How to build one dimensional list from string and build string from a list? Suppose input string is: STACKOVERFLOW then the output list should be outputList = [S,T,A,C,K,O,V,E,R,F

What is url describe their protocol, What is URL describe theri protocol? ...

What is URL describe theri protocol? URL basicallt stands for uniform resource locator. A URL is a pointer to a particular resource on the Internet at a particular location.

Applications of oop, Applications of OOP, The promising areas for applicati...

Applications of OOP, The promising areas for application of OOP include: Real-time systems Simulation and modelling Object-oriented databases Hypertext, hype

Devlop personalized location based news service, The system you will develo...

The system you will develop should provide the following functionality to its users.     1.  Your system should allow the users to aggregate three different RSS feeds (they should

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

I need engineer with good knowledge of assembly x86 language, I need an eff...

I need an efficient and fast reverse engineer with good knowledge of assembly x86 language, strong reverse engineering skills, IDA Pro (Hex-Rays) to Linux game routine, C, C++ prog

Matlab, ,how to write matlab program for fast decoupled method

,how to write matlab program for fast decoupled method

Network management configuratio, You will create a simple network managemen...

You will create a simple network management configuration which checks that certain programs are running on your network and are performing as expected, and that certain system det

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