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Develop a Functional Calculator Using HTML, CSS, and JavaScript #10

@Amal-Verma

Description

@Amal-Verma

Create a calculator using HTML, CSS, and JavaScript that can perform basic and advanced mathematical operations. It should have a user-friendly interface and support real-time input validation.

Functions to be Added

  1. Basic Operations:

    • Addition (+)
    • Subtraction (-)
    • Multiplication (*)
    • Division (/)
  2. Advanced Functions:

    • Exponentiation (x^y)
    • Square root (√x)
  3. Trigonometry:

    • sin, cos, tan
    • sin⁻¹, cos⁻¹, tan⁻¹
  4. Constants & Features:

    • Pi (π)
    • Euler’s number (e)
  5. User Interaction:

    • Clear (C)
    • Backspace (⌫) buttons

If the user enters a value that is not valid for a function (e.g., sin⁻¹(2) or √-1), the calculator should show an error message.

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