1. Basic Controls & Memory
• SHIFT: Top-left yellow functions activate karta hai.
• ALPHA: Variables (A-F, X, Y, M) aur RNG key ko activate karta hai.
• STO (Store): Value ko variable me save karein.
• RCL (Recall): Stored variable ki value screen par lane ke liye.
• M+ / M-: Screen value ko Memory (M) me add ya subtract karne ke liye.

2. Trigonometry
• sin, cos, tan: Normal angle ratios nikalne ke liye.
• DEG / RAD: Top screen par click karke Degree aur Radian mode toggle karein.

3. Inverse Trigonometry
• sin⁻¹, cos⁻¹, tan⁻¹: SHIFT + sin/cos/tan press karein.

4. Hyperbolic Functions
• sinh, cosh, tanh: Pehle hyp press karein, fir sin/cos/tan dabayein.

5. Powers, Roots & Fractions
• x², x³: Square aur Cube values calculate karein.
• √, ∛: Square root aur Cube root.
• ^ (Pow): Custom power ke liye.

6. Logarithm & Exponents
• log / ln: Base-10 aur Natural logarithm.

7. Algebra & Calculus
• x! (Factorial): SHIFT + x².
• gcd / lcm: Greatest Common Divisor aur Least Common Multiple.

Select input mode and click solve.