Pick the pack that matches your course
Each pack bundles lessons, practice quizzes, and reference sheets built around a real syllabus, not random flashcards. Preview anything for free, then unlock full access when you’re ready to get serious.
Quiz yourself the way the exam will actually look
No more squinting at “x^2 + 3x - 5” and trying to imagine what it means. Every question and answer choice renders with real math notation, so you practice reading the same formulas you’ll see on test day. Open the demo below and try it yourself.
You teach the course. We handle the busywork.
Building quizzes, formatting equations, and laying out study materials shouldn’t eat your entire weekend. Retainium gives professors and publishers an AI-assisted workspace that turns your outlines into structured lessons, quizzes, and formula pages in a fraction of the time, while keeping you in control of every word and every symbol. Your students get the same AI tutor that guides without giving away answers.
Learn more & request a trialStop wrestling with equation formatting
Anyone who’s hand-typed a piecewise function in a quiz builder knows the pain. Retainium has a built-in formula library. Search for the identity you need, drop it on the page, and drag it where it belongs. The equations render beautifully every time, no raw markup required.
Calculus & Algebra Reference
Search the formula library, drop what you need onto the page, and arrange it with drag-and-drop. No hand-typing required.
Quadratic Formula
Solutions to ax² + bx + c = 0
Pythagorean Theorem
For right triangles
Euler's Identity
The most beautiful equation
Derivative Power Rule
Basic differentiation rule
Integration by Parts
Integration technique
Binomial Theorem
Expansion formula
Every formula you add is searchable, reusable, and renders perfectly on any device. Need something custom? Create your own and save it to the library.
Ready to study smarter?
Preview any pack for free. Already subscribed? Sign in to pick up where you left off.