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eng zeinab

engzeinabengzeinab fayoumPosts: 1Member

Title: - "Expression Calculator" Description: - Scan a keyboard to read an arithmetic expression and write the result to an LCD character display. Details: - • The program is to read an arithmetic expression consisting of 8-bit operands and the mathematical operators -, +, * • The operands range is to be -128 to 127 • The multiplication operator is to have a higher priority than the addition or subtraction operators. • The result is t`o be displayed as a signed decimal quantity • The expression is to be limited by 16 characters including operands and operators • Add an option to your program such that you can delete the last entered digit or operator “backspace”.

    example : 

The input expression is : 15+4*5-60

     After pressing the “equal” button : Result= -25
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