Lv 771,512 points

Learner

Favourite answers51%
Answers8,888

I am a retired mechanical engineer from a central government organization in India. I have vast experience in fabrication, design, inspection and quality control. In the interest of learning & updating my knowledge, I took it a hobby of providing guidance in mathematics for students up to 12th grade for quite long years. As a retired person now, subject to my free time, I take pleasure of sharing my experience in the same spirit as previous, with whomsoever desires. Some useful symbols: ∞ ± √ ≤ ≥ π ∫ √ ∮ ⋀ ⋁ ¬ ∠ ∡ ⊥ Δ ÷ // ⇒ ∀ ∃ ∇ ∂ ∑ ≅ ≈ ≠ ∩ ∊ ∪ ⊂ ⊆ ⊃ ⊇ ∈ ∉ Superscripts: ° ⁻¹ ² ³ ⁴ ⁵ ⁶ ⁷ ⁸ ⁹ ª ⁿ ˣ Subscripts: ₀ ₁ ₂ ₃ ₄ ₅ ₆ ₇ ₈ ₉ ₊ ₋ ₌ ₍ ₎ Greek Alphabets: α β γ δ ε ζ η θ λ μ ξ ρ Σ σ φ ψ ω Π ∂ Ө Φ