Features

• •Basic arithmetic operations (+, -, ×, ÷)
• •Trigonometric functions (sin, cos, tan) with degree/radian modes
• •Inverse trigonometric functions (sin⁻¹, cos⁻¹, tan⁻¹)
• •Logarithmic functions (log, ln)
• •Exponential functions (e^x, x^y)
• •Memory functions (M+, M-, MR, MC, MS)
• •Constants (π, e)
• •Special functions (√, x², x³, 1/x, x!)
• •Calculation history
• •Real-time formula display
• •Error handling and validation