Upload lecture slides, textbooks, and notes. Grind extracts key concepts, builds adaptive daily study plans, solves doubts Socratically, auto-grades assignments, runs mock exams, and reinforces long-term memory with spaced repetition.
Baseline Diagnostic
Pinpoints weak concepts immediately before planning begins.
Adaptive Planner
Self-rebalancing daily schedule that adjusts around your mastery.
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AI auto-graded checkpoint questions with counter-exercises.
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A 5-question baseline test identifies weak topics. Grind generates an adaptive day-by-day study roadmap.
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Before building your plan, Grind runs a 5-question AI diagnostic drawn directly from your uploaded course material. Each answer is scored and mapped to specific topics, so the planner knows precisely which concepts need the most focus.
Signals & Systems · Ch. 4
Which condition guarantees BIBO stability for a continuous-time LTI system?
↻ Plan re-balanced — Stability Analysis added extra session based on diagnostic score.
Grind's planner isn't a static calendar. It re-distributes topics day-by-day based on your actual mastery scores. Score poorly on a checkpoint? The plan automatically inserts reinforcement sessions. Ace a topic early? It frees up time for harder concepts.
Ask any question in plain English or upload a photo of a tricky problem. Grind retrieves the most relevant chunks from your uploaded files using vector search, then answers Socratically — guiding you step-by-step rather than just handing you the answer.
A system is Bounded-Input Bounded-Output (BIBO) stable if every bounded input produces a bounded output.
In your course material (Signals & Systems, Ch. 2), notice how the impulse response must be absolutely integrable. What happens if a pole lies on the imaginary axis?
Z-Transform — Region of Convergence
78 / 100Perfect — cited textbook boundary theorem correctly.
Minor algebra error in residue calculation.
Missed the unit-circle boundary condition.
Excellent derivation. Full marks.
See counter-exercise below for gap area.
↻ Counter-exercise generated
Derive inverse Z-Transform of X(z) = z/(z²-3z+2) using long division. Targeted at your Q5 gap.
After each study session, Grind generates checkpoint assignments directly from your material. Submit your answers and the AI auto-grades against a rubric derived from your course files — then immediately generates targeted counter-exercises for any conceptual gaps found.
Grind schedules flashcard-style review sessions using the SM-2 algorithm, the same proven science behind Anki. Cards are sourced directly from your materials. Rate each recall attempt and the system adjusts the interval — showing harder cards sooner and easy ones less often.
Control Systems · Slide 14
State the Nyquist Stability Criterion in terms of encirclements of the (−1, 0) point.
How well did you recall this?
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