🔢 How to Use Scientific Functions

This calculator includes advanced scientific functions:

• Trigonometric functions: Use sin(, cos(, tan( followed by angle in radians
• Logarithms: log( for base-10, ln( for natural log (base e)
• Square root: √( for square root operations
• Constants: π for Pi (3.1415...), e for Euler's number (2.7182...)
• Exponents: Use ^ for power operations (e.g., 2^3 = 8)

Example: Try "sin(π/2)" or "log(100)"

💱 Currency Conversion Guide

Easily convert between Pakistani Rupees (PKR) and US Dollars (USD):

• PKR to USD: Enter amount in PKR and press PKR>USD
• USD to PKR: Enter amount in USD and press USD>PKR
• The calculator uses current exchange rate (1 USD ≈ 280 PKR)

Note: Exchange rates may vary in real markets

💡 Tips & Tricks for Better Calculations

Get the most out of your scientific calculator:

• Use parentheses to control operation order: (2+3)*4 = 20
• Chain calculations by using the result in next operation
• Press DEL to delete last character, C to clear everything
• History shows your last 4 calculations for reference
• Toggle dark mode for comfortable night-time use