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

I need to do coding for the last three question, i attached the assignment ...

i attached the assignment document only i need your help with following three parts: accessible areas, accessible cul-de-sacs that are all connected, entry-exit path with no in

Matlab and Image Processing and Neural Network, I need to do image reconstr...

I need to do image reconstruction using Neural Network using Matlab

Access modifiers, Access Modifiers Convenience Modifiers or we can say (Acc...

Access Modifiers Convenience Modifiers or we can say (Access Specifies) identifies as the opportunity of accessibility of an Item and its associates. All C# kinds and kind associat

Create a reservation system, Villa La Fourche Ltd is a small family busines...

Villa La Fourche Ltd is a small family business situated in the East Coast of Mauritius, more precisely Trou d'eau Douce.   The compound comprises of 6 independent villas, each of

C# XNA Game Development, I need help for C# XNA 2Dimension Game Development...

I need help for C# XNA 2Dimension Game Development. I am gonna send the question and my solution(incomplete). I need you to complete it. Can you help me about that. I have 6-7 days

What is cisc & risc?, Question 1 What is CISC & RISC? Explain their addres...

Question 1 What is CISC & RISC? Explain their addressing modes Question 2 Discuss the following- Design Specification of Assembler Design of Single Pass Assembler

Computer education , #question.what. is cai? Explain its pitfalls .o

#question.what. is cai? Explain its pitfalls .o

Matlab programming, I need help with some simple matlab statements

I need help with some simple matlab statements

Explain the applet element, Explain the applet Element ? Applets are em...

Explain the applet Element ? Applets are embedded in web pages by using the and tags. The APPLET element is same to the IMG element. Like IMG APPLET references a source fil

Design and implement a character analyser, Your task is to write an applica...

Your task is to write an application to analyse texts in a file.  Your application will employ  several kinds of text-analyser objects (which you also have to implement)  as descri

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