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

Read file in Perl, These are the specifications for your Perl program: 1. ...

These are the specifications for your Perl program: 1. The file containing your program must be named cookiemgr.pl 2. It must be invoked as: cookiemgr.pl cookies_file [options]

Apply generic algorithms in solving programming problems, Educational Objec...

Educational Objectives: After completing this assignment, the student should be able to accomplish the following: Apply generic algorithms in solving programming problems Define an

Computes the least squares fit of the data, Your solution to the problem sh...

Your solution to the problem should be housed within a while loop, which allows the grader to test your solution repeatedly without having to re-execute the script, as shown in cla

Define a procedure that takes three numbers as arguments, Translate the fol...

Translate the following formula into a prefix form expression in Scheme: Question 2 Define a procedure that takes three numbers as arguments and returns the sum of the squ

1 real and 2 complex eigenvalues, 1 Real and 2 Complex Eigenvalues    ...

1 Real and 2 Complex Eigenvalues    From the real eigenvalue/vector pair, l 1 and ?h 1 e l1 t ?h 1 We find the other two solutions in identical manner which we did

Controlling stepper motor through rtlinux, In this project, we have measure...

In this project, we have measured and compared the performance given by RTLinux, which is real time system with non-real time Linux operating system. Also, we have measured the

econometrics using r, EF308 Assignment 2 Due: 3pm, 26 April 2012 Introduct...

EF308 Assignment 2 Due: 3pm, 26 April 2012 Introduction This assignment is loosely based on Cheung et al. (2005) and Molodtsova and Papell (2009) and examines the out-of- sample pr

Capital gain calculator, This assignment is divided into two parts. The goa...

This assignment is divided into two parts. The goal is to write a Java program that calculates capital gain on a stock market, see Lab 7. When a share of common stock of some co

Javascript variables and datatypes, Let us first see the skeleton of a Java...

Let us first see the skeleton of a JavaScript file. JavaScript code should be written between the and tags. The value LANGUAGE = "JavaScript" indicates to the browser that J

Version control systems - delete and update, The next major set of tasks to...

The next major set of tasks to tackle are delete and update. Version control systems typically version updates to a ?le and only store the differences between the ?les. Two system

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