Simple Calculator (ReactJS)

Goal 1 - Basic Calculator

• An area at the top to display the input or result
• 10 buttons for numbers 0-9
• 4 buttons for operations (Add, Subtract, Multiply & Divide)
• Clear button (completely clears the stack, akin to AC in a real calculator)
• = button (computes and displays the result)
• Operation buttons also compute and display intermediate results

Goal 2 - Scientific Mode

• Sign button (Flips the input from positive to negative, or vice versa)
• Square button (Finds the square of the input)
• Square Root button (Finds the square root of the input)

Goal 3 - Themes

• Light Theme
• Dark Theme