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Mathematical solvers alongside lessons and formulas

Statistical tests, power analysis and descriptive tools

Focused browser calculators for statistical questions

Focused statistics tools for research calculations

Browser tools for beam and structural calculations

Component calculations for practical electronics

Audio, acoustics and electrical calculation references

Fluid-flow calculators for pipes, valves and measurements

Molecular masses, formulas and isotope distributions

Laboratory calculations beside molecular-biology utilities

A focused math solver with examples and reference links

Import a manuscript and compile several ebook formats

Validate and convert coded measurement-unit expressions

Media conversion with original-and-output previews

Create and check digital-cinema and IMF packages

Inspect public IP and approximate geolocation data

Explain IPv4 subnets through address ranges and binary values

Open-source validation for PDF/A and PDF/UA

PDF tagging, manual repair, and built-in validation

Combine a resume and portfolio with a more directed job search

Plan a local or airport ride using the options offered for the pickup

School-exam revision using subject lessons, flashcards and question practice.

Chrome extension that summarizes Amazon reviews with AI.

AI chat, writing, image tools and a Chrome extension from Arvin.