Trigonometric vs Trigonometry Toolkit by CS

Learn trigonometry by seeing it move. Trigonometric turns every formula into something you can drag, spin and explore — free, with no ads, no accounts and no internet needed. UNIT CIRCLE • Drag point A round the circle or use the slider and play button • Change the radius OA and read x = OA·cos θ, y = OA·sin θ, arc length AB, circumference and sector area • Exact values such as √3/2, angles in degrees and as multiples of π, quadrant signs (All–Sin–Tan–Cos) and the tangent line 3D SPHERE — SPHERICAL COORDINATES • Place a point P(r, θ, φ) on a glass sphere you turn with your finger • See it converted to x, y, z and back, with top and side views • Explore the volume element r² sin θ dr dθ dφ GRAPHS • A rotating circle draws sin, cos and tan, projected straight onto the curve • Reshape y = A·f(Bx + C) + D with sliders and read amplitude, period, phase shift and midline • Type your own formula — or try examples like a Fourier square wave, a damped wave or beats TRIANGLE SOLVER • Solve any triangle from three values: SSS, SAS, ASA/AAS and the ambiguous SSA case • Drawn to scale, with area, perimeter and every step of the working FORMULAS & QUIZ • A searchable cheat sheet of identities, the laws of sines and cosines and the special-angle table • Quick ten-question quizzes with an explanation after every answer Three colour themes, full iPad support and a side-by-side landscape layout. Made for students, teachers and anyone curious about trigonometry.

Trigonometry Toolkit helps students learn faster by combining visual tools, calculators, and practice in one clean app. Core tools: • Interactive Unit Circle: Drag and explore angles, sin/cos/tan values, quadrants, reference angles, and exact values. • Right Triangle Solver: Solve sides, angles, area, and perimeter quickly. • General Triangle Solver (Premium): Solve SSS, SAS, ASA, AAS, and SSA (ambiguous case). • Degree/Radian Converter: Convert instantly in both directions. • Exact Value Finder: Check common exact trig values. • Trig Identities: Search and review identities with examples. • Graphing Tool: Plot trig functions and transformations. • Reference Angle, Coterminal, Arc Length & Sector Area calculators. Practice features: • Category-based quizzes with Easy / Medium / Hard levels. • Daily Challenge mode (5 mixed questions). • Performance insights: streak, best streak, attempts, and average accuracy. • Recent activity and continue-learning flow. Reference and study support: • Formula list with category filters and search. • Save favorites and review recent history. • Built-in reference pages for key identities and graph rules. Premium (one-time purchase): • Remove ads • General Triangle Solver • Advanced graphing options • Unlimited quizzes • Detailed explanations • Unlimited history and favorites • Access to premium identity sets and future premium updates Designed for learners, exam prep, and classroom support.