4 function calc spec

gistfile1.txt

This is a practice specification of a 4-function calculator.

User Stories:
User presses number buttons
User presses  operation buttons to calculate the total
User is shown the result of calculation
User can clear the display

Psuedo:

store operations inside of an array
buttons that are numbers between 1-9

when number buttons are clicked, values print to the output

when operation buttons are clicked it performs the calculation of the numbers 
that are clicked.


append the number with the operator
num /*+-  value
store result inside of a variable

store equation inside of a variable

if operator is +-/* perform operation on chosen nums

display result to display id

user clicks clear to clear display