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Math

PID Controller Visualization

Interactive exploration of proportional, integral, and derivative control

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Audio Analysis and Visualization Tools

Visualize audio, inspect stereo, diagnose signal and timing, and check files before delivery.

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Regex Testing, Visualization, and Safety Workflow

Build reliable regular expressions by learning syntax, testing matches, visualizing structure, previewing replacements, benchmarking alternatives, and scanning for ReDoS risk.

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Differential Equations, Transforms, and Numerical Methods

Solve engineering math problems across ODEs, Laplace or Z transforms, convolution, and numerical approximation while checking method fit, units, and initial conditions.

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Math and Number Conversion Workflow

Convert measurements, number bases, fractions, scientific notation, Roman numerals, and byte or bit values with a clear precision check.

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Lead Generation Quiz Launch and Contact Handoff
Memorial Drafts: Family Review and Print Handoff
Private Habit Records: Backup, Restore and Sharing Review
Article to X and LinkedIn Drafts: Fact Review and Handoff
Markdown Interactive Deck Review and Offline Handoff

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Format Conversion

AsciiMath LaTeX MathML Equation Converter

Convert equations between AsciiMath, LaTeX and MathML: auto-detect the input format, produce canonical LaTeX, presentation MathML with an embedded TeX annotation, a best-effort AsciiMath back-translation, a screen-reader aria-label snippet (role=math), and a KaTeX HTML preview.

AI Tools

AI Math Solver/Photomath

Solve math problems from images using AI vision models with step-by-step explanations

Document Tools

PDF Formula Extractor (LaTeX / MathML / MathJax) with AMS Equation-Number Preservation

Detect and reconstruct embedded math formulas from vector PDFs: math-font recognition (CMMI/CMSY/CMEX, STIX, Cambria Math), Unicode math, super/subscripts and stacked fractions, AMS equation numbers ((2a)/(2b) subequations) preserved; outputs copyable LaTeX, presentation MathML (MathJax/KaTeX-compatible) and a downloadable .tex bundle.

Health

SIR SEIR Compartmental Epidemic R0 and Intervention Modeling Coach

Run SIR / SEIR / SEIR+V / SEIR+H ODEs with RK4: R0, herd-immunity threshold, analytic peak and final-size equations, growth-rate conversion, WAIFW next-generation-matrix R0, incidence fitting and intervention simulation.

Chemistry

Zero-Order Reaction - Interactive Visualization

Interactive visualization of zero-order reaction kinetics and concentration changes over time

Chemistry

First-Order Reaction - Interactive Visualization

Interactive visualization of first-order reaction kinetics and exponential concentration decay

Chemistry

Second-Order Reaction - Interactive Visualization

Interactive visualization of second-order reaction kinetics and bimolecular collision dynamics

Chemistry

Arrhenius Equation

Interactive visualization of temperature effect on reaction rate - Explore activation energy, pre-exponential factor, and rate constant relationship

Chemistry

Reversible Reaction

Interactive visualization of A ⇌ B reversible reaction kinetics - Explore forward and reverse reaction rates, equilibrium constant, and concentration changes over time

Chemistry

Consecutive Reaction

Interactive visualization of A → B → C consecutive reaction kinetics - Explore intermediate concentration peaks, rate-determining steps, and complete evolution of all species

Chemistry

Chain Reaction

Interactive visualization of free radical chain reaction polymerization - Explore initiation, propagation, termination steps, chain growth animation, and molecular weight distribution

Chemistry

Le Chatelier's Principle

Interactive visualization of Le Chatelier's Principle - Explore how changes in concentration, pressure, and temperature affect chemical equilibrium with animated molecular dynamics