How to make scientific calculator using JavaScript

Question

It must have trigonometric as well as inverse trigonometric function
It should have feature of storing last 10 input so that user can see and able to correct it.

Answer 1

This will help a lot
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math

For the input history, you can create an array. Then push() the input, if the size is more than 10 execute shift()