Text Processing

Convert fullwidth characters to halfwidth characters for proper text formatting

Finance

Calculate future value of investments with compound interest

Text Processing

Parse fixed-width text with explicit or inferred field boundaries, character or UTF-8 byte positions, schemas, and anomaly reports.

Education

Type a football foul in plain words ("handball in box", "tactical foul to break the counter", "indirect free kick signal") and get the IFAB 2025/26 law reference, restart (DFK/IFK/PK), card, referee signal, and a season yellow-card suspension forecast.

Fitness

Builds a ready-to-run interval or fartlek session card from one anchor number: warm-up + reps × work + recoveries + cool-down with per-segment pace, power or split targets (Daniels zones from a 5K time, Coggan %FTP zones, or erg splits from a 2K time), work:rest ratio, CR-10 RPE distribution, and a polarized-training intensity-mix check.

Science & Education

m = M·I·t/(n·F) with unit selectors for current and time: charge passed, moles of electrons, and the mass deposited.

Science & Education

Faraday's law |ε| = N·ΔΦ/Δt with turns, flux, and time selectors, plus the Lenz's-law sign explained — one turn and one weber per second induce exactly one volt.

Math & Numbers

Solve separable dy/dx = g(x)·h(y) symbolically: H(y) = G(x) + C, explicit inversion, initial conditions, and partial fractions for quadratics like y(1−y).

Health

Compute FEV₁/FVC and classify obstructive (<70% GOLD) vs restrictive (normal ratio, reduced FVC) patterns, with the ATS/ERS LLN caveat. Not medical advice.

Design

Convert a Figma px value into iOS pt, Android dp/sp, web rem/vw with a fluid clamp() snippet, a density-bucket render table and a touch-target accessibility audit, as a developer spec card.

Education

Step-by-step tutor for automata and combinational logic: ε-NFA/NFA → DFA subset construction, Moore minimization, Mealy↔Moore conversion, Karnaugh maps and exact Quine-McCluskey minimization with tables, ASCII diagrams and every round shown.

Design

Inspect TTF/OTF/WOFF/WOFF2 fonts: metadata, glyph counts, metrics, style flags, Unicode coverage heatmap, glyph SVG previews, ligatures, OpenType features and variable-font axes.