Any maths question, decomposed, solved and explained.
Algebra, calculus, linear algebra, differential equations, probability, proofs — plus the mathematics inside physics, chemistry, engineering and finance. Every step shows the working, the rule used and what is actually happening, then the answer is independently verified.
Subject area
Chemistry keys
tap to insert subscripts, charges and reaction arrowsNotation guide
how to type integrals, powers, subscripts and chargesIntegrals & calculus
- Definite: ∫_0^1 x^2 dx
- Indefinite: ∫ x^2 dx
- Derivative: dy/dx of x^2
- Limit: lim x→∞ 1/x
Powers & superscripts
- Square: x^2
- Group: (x+y)^(2)
- Root: sqrt(x) or x^(1/2)
- Ion: H^+ → H⁺
Subscripts & chemistry
- Type plain: H2O → H₂O
- Or use keys: H₂O
- Charge: SO4^2- → SO₄²⁻
- State: (s) (l) (g) (aq)
Type maths in plain text: x^2, sqrt(x), dy/dx, matrices row by row. Symbol names auto-convert as you type — write alpha, theta,infinity, integral or leq then a space and it becomes α, θ, ∞, ∫, ≤. For everyday words use a backslash: \to → →,\sum → ∑, \degree → °.
Depth
Decompose · Step-by-step working · Answer · Verification