Clone the repo and type the command "node calculator" in the terminal.
Choose a calculation option among these 11 options:
0 - Calculate Number PI 1 - Calculate Eulner's number 2 - Calculate Ratio (x,y, width) 3 - Calculate Percentage (x,y) 4 - calculate.add(x, y) 5 - calculate.subtract(x, y) 6 - calculate.multiply(x, y) 7 - calculate.divide(x, y) 8 - calculate.modulation(x, y) 9 - calculate.elevate(x, y) 10 - calculate.sqrt(x)
