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Independent TOEFL guides, sample answers and speaking or writing evaluation services.

Practical web-interface articles, guides and workshops

Single-page website references organized by purpose and section

Environments for training AI and agents that handle recurring engineering work

Financial-modeling courses with interview case studies.

Survey software for post-purchase, exit-intent, NPS and in-app feedback.

Algebra entry with solving, factoring and graphing modes

Mechanical-design calculators with documented methods

Choose a resume format and get feedback from a trusted contact

Shader techniques explained through a working 3D demo

Offer customers available appointment times through a booking page connected to Microsoft 365 calendars.

AI book translation for literary works, with multi-pass processing and consistency checks.

A DASH reference player for browser integrations

Build text-matching patterns from examples

Explore Vietnam by region, travel month and interests.

Cloud face recognition API for web and mobile apps

Isolate image subjects through a web tool or API

Official IELTS sample questions, writing guidance and links to preparation courses.

IELTS study guidance with sample essays, graph responses, vocabulary and practice material.

Algebra and calculus through dedicated solvers

Solid turns written descriptions into working web applications.

AI tool that writes job specific cover letters

One API for 1000+ AI models across text, image, video, audio, and code.

An R programming introduction for non-programmers