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

No Linux Audible, Why no Audible support for Linux? Maybe they should use a...

Why no Audible support for Linux? Maybe they should use a browser interface?

Assignment about prolog, Hi I have an assignment for prolog languagle is ...

Hi I have an assignment for prolog languagle is it possible to get help

Java reflection api, Expertsmind brings you unique solution in java assign...

Expertsmind brings you unique solution in java assignments Reflection API Uses of Reflection with java assignment help Reflection is widely used by applications which

Design and construct a basic math program, For this assignment you will nee...

For this assignment you will need to design and construct a basic math program which targets elementary school children. Your program must adhere to the following steps and require

Algorithem for create game application, Play is as follows: 1.) Player p...

Play is as follows: 1.) Player places a bet a. Bet is on one of three choice i. "Player" will win ii. "Banker" will win iii. Tie between the "Player" and the "Banker

Operating systems, I do have an assignment in operating systems programming...

I do have an assignment in operating systems programming ... how can i attach my file?

Matlab project - beginners level, Can you provide help in solving error pro...

Can you provide help in solving error problems, with my matlab project?

Er diagram, I need someone to make an ER diagram.

I need someone to make an ER diagram.

Program to present main frame contains of button, The program presents main...

The program presents mainframe contains two button new user, existing user PART ONE: CLICKING ON NEW USER New window appear contains: text field represent username,

Write a booking and pricing system, Write a booking and pricing system for ...

Write a booking and pricing system for seats for performances in a theatre. Design and write a system to handle information (equipment, people, events etc.) for a club. Given

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