SectionLab vs Plott

SectionLab transforms abstract geometry into a hands-on, visual experience. Perfect for students, teachers, and anyone curious about how 2D relates to 3D. BUILD mode — See 2D become 3D Watch flat shapes transform into solid objects through three different mechanisms: • Rotate: Spin a rectangle into a cylinder, a triangle into a cone, or a semicircle into a sphere • Translate: Extrude a circle upward to form a cylinder, or a square into a cube • Roll: Curl a flat plane into a cylindrical surface Drag the progress slider to control how far the transformation goes, or hit Auto Play for a seamless demonstration. CUT mode — Slice 3D shapes to see inside Choose from five geometric solids (cube, cuboid, cylinder, cone, triangular prism) and cut them with an adjustable slicing plane: • Move the cutting plane up/down and tilt it in any direction • Pull the two halves apart to examine the cross-section in detail • Toggle visibility of each half to focus on either side • Use the Cross-Section Dictionary for instant access to classic cuts (circle, ellipse, triangle, hexagon, and more) Why SectionLab? • Fully interactive 3D — pan, rotate, and zoom with touch gestures • No internet required — all 3D rendering runs locally • Multi-language support: English, 中文, 日本語, 한국어 • iPad-optimized with large touch targets • Clean, distraction-free interface designed for focused learning Perfect for: - Middle school and high school geometry students - Teachers looking for classroom demonstration tools - Self-learners exploring spatial reasoning - Anyone curious about the math behind 3D shapes

Plott is a fast, native graphing calculator for 2D and 3D — a desktop-class grapher rebuilt for touch. Plot a function, a family of curves, a polar rose or a glowing 3D surface, then pan, zoom and orbit at a silky 120fps. Everything works offline, with no account and no sign-in. Type one line and Plott works out the rest — explicit y = f(x), polar, parametric, implicit, inequalities and vectors, all classified as you type. — GRAPH ANYTHING — • Functions, piecewise, polar, parametric and complex curves • Implicit equations and shaded inequalities • Families: sweep a whole set of curves from a single line • Data tables, scatter points and best-fit regression • 3D surfaces z = f(x, y), parametric surfaces, space curves and knots • Vector fields, slope fields, differential equations and attractors • Contour lines and level-curve heat maps — MATH, BUILT IN — • Sliders: drag a parameter and watch every curve update live • Calculus: derivatives, tangents, integrals and area under a curve • Evaluate limits, sums, products, matrices and determinants • Points of interest: tap to snap to roots, intercepts, extrema and intersections • Trace any curve for a live coordinate readout — TRUE 3D — • Real surfaces you can orbit to any angle — free rotation, no gimbal lock • Pinch to zoom, drag to pan, tap to read a point in space • Isometric, top and front view presets • Smooth at 60/120fps and fully offline — MADE FOR PHONE & TABLET — • A calm, high-contrast drafting studio in two themes: a luminous blueprint dark and a warm vellum light • On tablet, a desktop-class side rail edits every object at once • A purpose-built math keyboard with templates for every curve type • Apple Pencil and hardware-keyboard friendly — YOURS, ALWAYS — • Unlimited undo/redo, autosave and session restore • Export to PNG or PDF, or share a sheet as a file • A gallery of first-party examples to learn from Plott is made for students, teachers, engineers and the mathematically curious — precalculus and calculus, algebra and geometry, statistics and beyond. Replace a clunky handheld and a pile of apps with one beautiful grapher. Graph beautifully. Download Plott.