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

String cost, A string S is said to be "Super ASCII", if it contains the cha...

A string S is said to be "Super ASCII", if it contains the character frequency equal to their ascii values. String will contain only lower case alphabets (''a''-''z'') and the asci

Write a program to display some data in bar graph form, Write a program to ...

Write a program to display some data in bar graph form. Have at least 20 elements, which can be positive or negative; draw each element with a vertical bar, going up if the data is

Program that will allow to print grade list of student, We want a program t...

We want a program that will allow us to print a "grade list" of the students in a class. The program should loop, asking for a name, midterm score, and final score. It should th

Python , Return a new picture with each pixel''s color values made up of 80...

Return a new picture with each pixel''s color values made up of 80% of the color values of the corresponding pixel in the first picture and 20% of the color values of the

Online Business Systems, Task .Task 1 Database design This task will allow...

Task .Task 1 Database design This task will allow you to demonstrate the following Learning Outcomes (LOs): LO 2. Justify the design and development of the application and critica

Java multithreaded programming, Expertsmind brings you unique solution in ...

Expertsmind brings you unique solution in java assignments Multithreaded Programming Java provides built-in support for multithreaded selection. A multithreaded applicatio

Data analytics, can i get assignments on Data analytics?

can i get assignments on Data analytics?

Java interfaces, Expertsmind brings you unique solution in java assignment...

Expertsmind brings you unique solution in java assignments Interfaces A program in the Java selection language is a fuzzy type that is used to specify a program (in the ge

Write an xslt-flatten the tree, Flatten the tree Consider the followin...

Flatten the tree Consider the following XML input, which groups people into two categories-salaried and hourly: Warren Rosenbaum 37 5.75

Oracal Query, Find out the selling cost average for packages developed in P...

Find out the selling cost average for packages developed in Pascal

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