Question

Make a text based calculator • The calculator can add, subtract, multiply and divide. • It will work like this: the user will input the full equation on the input line. It will look something like this 3.1 + 11. (DO NOT take 2 or more inputs from the user for one equation like they do with examples on the internet) • You will parse the input and calculate the result. The above example will print 14.1 • If the user doesn't start with a number but starts with a math symbol then use the previous result as the first number. • For example, if the user typed in - 2.1 then the result would be 12 because since the previous result was 14.1 you must compute 14.1 - 2.1 • Things to watch out for are: • • Do not allow a divide by zero • - 2.1 is not the same as -2.1. The first is a subtraction, the second is a negative number. • Don't allow entry of non-numbers that are not math symbols. • Don't allow other syntax errors.

          Make a text based calculator
• The calculator can add, subtract, multiply and divide.
• It will work like this: the user will input the full equation on the input line. It will look something like this
3.1 + 11. (DO NOT take 2 or more inputs from the user for one equation like they do with examples on the
internet)
• You will parse the input and calculate the result. The above example will print 14.1
• If the user doesn't start with a number but starts with a math symbol then use the previous result as the
first number.
• For example, if the user typed in - 2.1 then the result would be 12 because since the previous result was
14.1 you must compute 14.1 - 2.1
• Things to watch out for are:
•
• Do not allow a divide by zero
• - 2.1 is not the same as -2.1. The first is a subtraction, the second is a negative number.
• Don't allow entry of non-numbers that are not math symbols.
• Don't allow other syntax errors.

Make a text based calculator
• The calculator can add, subtract, multiply and divide.
• It will work like this: the user will input the full equation on the input line. It will look something like this
3.1 + 11. (DO NOT take 2 or more inputs from the user for one equation like they do with examples on the
internet)
• You will parse the input and calculate the result. The above example will print 14.1
• If the user doesn't start with a number but starts with a math symbol then use the previous result as the
first number.
• For example, if the user typed in - 2.1 then the result would be 12 because since the previous result was
14.1 you must compute 14.1 - 2.1
• Things to watch out for are:
•
• Do not allow a divide by zero
• - 2.1 is not the same as -2.1. The first is a subtraction, the second is a negative number.
• Don't allow entry of non-numbers that are not math symbols.
• Don't allow other syntax errors.

Added by Andrew S.

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