Creating a calculator with condition Post: 303007716

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Homework and Emergencies Homework & Coursework Questions Creating a calculator with condition Post 303007716 by mugiboya on Monday 20th of November 2017 04:05:59 PM

11-20-2017

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Creating a calculator with condition

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:

Create a calculator application in your home folder called itncacl that will perform the following applications:

Add two numbers
Subtract two numbers
Multiply two numbers
Divide two numbers
You cannot divide by zero, so create a condition that checks for and prevents a that condition.

2. Relevant commands, code, scripts, algorithms:

3. The attempts at a solution (include all code and scripts):

Code:

#!/bin/bash

clear


echo "Enter the first number:"
read n1

echo "Choose an operation:"
echo "1. add"
echo "2. subtract"
echo "3. multiply"
echo "4. divide"
read opr

echo "Enter the second number:"
read n2

if [ $opr = "1" ]
   then
      echo $((n1+n2))
elif [ $opr = "2" ]
   then
      echo $((n1-n2))
elif [ $opr = "3" ]
   then
      echo $((n1*n2))
elif [ $opr = "4" ]
   then
       echo $((n1/n2))
fi
exit 0

My only question is how do I add to my code so that when I try to divide by zero it will show Cannot divide by zero or invalid? Thanks!

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
Northern Virginia Comm College, VA, USA, Saleh, ITN171

Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).

Last edited by Scott; 11-20-2017 at 05:07 PM.. Reason: Please use code tags

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