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

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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

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:

Enter value of n:

Result=1555

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