Simple Scientific Calculator

Scientific Calculator – User Guide

Description: The Scientific Calculator is a web-based tool that provides basic arithmetic operations, trigonometric functions, logarithms, and parentheses support. It’s designed to assist users in performing mathematical calculations efficiently, making it useful for both simple and scientific calculations.

How to Use:

1. Access the Calculator:
   • Open your web browser and navigate to the page where the calculator is embedded.
2. Buttons and Functions:
   • The calculator’s interface consists of a display area and a set of buttons for different operations.
   • Buttons are categorized as numbers, operators, functions (like sin, cos, sqrt), and parentheses.
3. Entering Numbers and Operations:
   • Click the number buttons (0-9) to input digits into the display.
   • Click the operator buttons (+, -, *, /) to input arithmetic operations.
   • Use the decimal button (.) to input decimal points.
4. Performing Calculations:
   • After entering the desired numbers and operations, press the “=” button to calculate the result.
   • The result will be displayed in the input area.
5. Trigonometric Functions:
   • Click the sin, cos, and tan buttons to calculate the sine, cosine, and tangent of an angle, respectively.
   • Enter the angle value in degrees or radians and then press the “=” button.
6. Logarithmic Function:
   • Click the log button to calculate the logarithm of a value.
   • Enter the value inside the parentheses and then press the “=” button.
7. Parentheses:
   • Use the “(” and “)” buttons to add opening and closing parentheses to your calculations.
   • Parentheses are useful for grouping operations and ensuring correct order of evaluation.
8. Clearing and Errors:
   • Press the “C” button to clear the display and start a new calculation.
   • If an error occurs during calculation, the display will show “Error.”

Tips:

• Always input the numbers and operations in the correct order to achieve accurate results.
• For trigonometric functions, enter angles in degrees or radians as required.
• Use parentheses to control the order of operations and ensure accurate calculations.

Note: While this calculator provides basic functionality, it’s important to be aware that using eval for calculations has limitations and security risks. For more advanced and secure calculations, consider using specialized mathematical libraries.

Enjoy using the Scientific Calculator for your mathematical calculations!