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

Describe informally how to draw a pda diagram, Suppose L is a context-free ...

Suppose L is a context-free language and L' is regular. Show that L∩ L' is a context- free language. Specifically, if you're given a PDA diagram of L and a DFA diagram for L' , des

NETLOGO , THERE IS ANY1 COULD HELP ME WITH NETLOGO WORK

THERE IS ANY1 COULD HELP ME WITH NETLOGO WORK

Irenecereno, Using the concept of structures, write a program to assign pas...

Using the concept of structures, write a program to assign passenger seats in an airplane. Assume a small airplane with seats numbered as follows: 1 A B C D 2 A B C D 3 A

Write a program to show twenty ellipses, Write a Program to Show Twenty Ell...

Write a Program to Show Twenty Ellipses 1. Write a program to show twenty ellipses which move away from the mouse pointer. Their initial locations should be random.

Program to change date format, Write a program that accepts a date from the...

Write a program that accepts a date from the user in the form mm/dd/yyyy and then displays it in the form month dd, yyyy, where month is the name of the month. Enter a date (mm/d

Inheritance, The Lost Bay Software Coop purchased EnviroMeasurements, a sma...

The Lost Bay Software Coop purchased EnviroMeasurements, a small startup with a product, GreenStation, that measures pollen count and air quality. The company has ventured

Shell script to print the name of file that has maximum size, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Program for keep track of the titles of ebooks, This assignment will just f...

This assignment will just focus on NookyKindle eBook orders.  That is, we'll be keeping track of the titles of eBooks and the number of orders for that particular eBook during a pa

Define a procedure that takes a list as a single argument, (a) Define a pro...

(a) Define a procedure (subsets x) that takes a list as a single argument and returns all 2^n subsets of that list, i.e. the power set of the list; e.g. (subsets '(a b c)) ==> (

Shell script to display words of a file in ascending order, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

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