node fileName operation values // values is optional for random
node index.js add 1 5 // Output --> 6
node index.js sub 9 5 // Output --> 4
node index.js mul 1 5 // Output --> 5
node index.js divide 32 4 // Output --> 8
node index.js sin 60 // Output --> -0.3048106211022167 || sin of an angel given in radians
node index.js cos 60 // Output --> -0.9524129804151563 || cos of an angel given in radians
node index.js tan 60 // Output --> 0.320040389379563 || tan of an angel given in radians
node index.js random // Generate a random number between 0 to 10