1. What is This Calculator?

This is a general purpose calculator that evaluates mathematical expressions. It can handle basic arithmetic as well as some common mathematical functions.

2. How Does the Calculator Work?

The calculator evaluates the expression you enter using standard mathematical rules:

Where the input expression can include:

• Basic arithmetic: +, -, *, /
• Parentheses for grouping: ( )
• Exponents: ^ or **
• Mathematical functions: sin, cos, tan, log
• Constants: pi

3. Supported Operations

Details: The calculator follows standard order of operations (PEMDAS/BODMAS) and supports:

• Addition (+), Subtraction (-)
• Multiplication (*), Division (/)
• Exponents (^ or **)
• Trigonometric functions (sin, cos, tan)
• Logarithm base 10 (log)
• Parentheses for grouping
• The constant pi (π)

4. Using the Calculator

Tips:

• Enter your mathematical expression in the input field
• Use * for multiplication (not ×)
• Use / for division (not ÷)
• Use parentheses to clarify order of operations
• Example: 2*(3+4)^2

5. Frequently Asked Questions (FAQ)

Q1: What's the order of operations?
A: Parentheses, Exponents, Multiplication/Division (left to right), Addition/Subtraction (left to right).

Q2: Can I use scientific notation?
A: Not currently supported. Please enter numbers in standard form.

Q3: What trigonometric functions are available?
A: sin, cos, tan - all using radians.

Q4: Is there a memory function?
A: Not in this basic version. You'll need to note results manually.

Q5: Can I calculate percentages?
A: Yes, but you need to enter them as decimals (e.g., 25% = 0.25).