Shell script to generate the series 1+x + x2+ x3+….+xn, Programming Languages

Assignment Help:

 W.A.S.S to generate the series 1 + x + x2 + x3 + …. + xn.

 

Program

 

   # W.A.S.S to generate the series 1 + x + x2 + x3 + …. + xn.

echo "Enter value of X:"

read x

echo "Enter value of n:"

read n

sum=1

temp=1;

 

while test $n -gt 0

do

   temp=`expr $x^$n | bc`               #bc - An arbitrary precision calculator

   sum=`expr $sum + $temp`

   n=`expr $n - 1`

done

 

echo "Result=$sum"

 

Output

 

Enter value of X:

6

Enter value of n:

4

Result=1555


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