Geometry Pad vs Dynamic Geometry Sketch Pad

Geometry Pad turns your iPad into an infinite canvas for exact plane geometry. Build points, lines, triangles, polygons, circles and conics with a few taps, and they stay exact: a square stays a square, a parallel stays parallel, and an intersection point stays on its crossing however you move things around. Free to download, with every construction tool included. Unlock Premium with an in-app purchase for even more. CONSTRUCTIONS THAT STAY CONNECTED • Parallel and perpendicular lines, perpendicular bisectors, tangents, chords and intersection points follow their shapes as you drag them. • Altitudes, medians and angle bisectors of triangles and polygons update as the shape changes. • Right, isosceles and equilateral triangles, squares, rectangles, parallelograms, rhombi and regular polygons keep their kind when you edit them. PRECISION BY TOUCH • Points snap to the grid, to vertices, midpoints, sides and curves, and to the crossings of shapes. • A magnifying glass shows exactly where each point lands. • Type exact coordinates, lengths, radii and angles with the built-in calculator (Premium). LIVE MEASUREMENTS • Every shape shows its lengths, angles, slopes, equations, perimeter and area. • Place measurement labels on the canvas. They update as you move the shape. • Show the angles where lines cross with a single tap. CLASSIC INSTRUMENTS AND TRANSFORMATIONS • A compass that draws arcs, and a protractor that draws segments at an exact angle. • Rotate, reflect and translate shapes, or copies of them (Premium). SHAPES FROM NUMBERS (PREMIUM) • Build lines from their equations, triangles from their sides and angles, quadrangles from their sides and an angle, and parabolas and hyperbolas from their equations, with a live preview as you type. WORKSHEETS AND DOCUMENTS • Write notes in text boxes, and add pictures from the camera or photo library (Premium). • Import a PDF and draw and measure on top of its pages (Premium). • Create documents with several pages, on an infinite canvas or on A4 and A3 paper (Premium). • Share your drawing as an image (with cropping) or as a document, or export it as PDF or SVG (Premium). • Your work saves automatically to the Files app. Documents from the previous Geometry Pad open too. MADE FOR THE CLASSROOM • Cartesian, polar and isometric grids. • Real centimeters and inches on screen. • Seven themes, including chalkboard and blueprint, and full dark mode support. • Apple Pencil, keyboard shortcuts, multitasking and VoiceOver. PREMIUM One in-app purchase unlocks editing exact values, transformations, shapes from numbers, picture and PDF import, PDF and SVG export, and multi-page documents with A4 and A3 paper. Bought Premium in the previous Geometry Pad? It's recognized automatically, and Restore Purchase brings it to your other iPads. Geometry Pad is for teachers preparing lessons and worksheets, and for students exploring geometry on their own. We'd love to hear from you: tap Share feedback in the app's Help menu.

Sketchpad is a set of mathematics dynamic geometry, mathematical computation, formulas input application. Using mathematical drawing board, you can replace the Ruler mapping, but you can make advanced image and function of the image trajectory, can dynamically change their properties, measure their relative value, you can create custom variables, custom functions, using natural mathematical formula input expression, beautiful, clear, inside it is built up to 25 common mathematical functions. All visual elements are displayed in a scrollable Sketchpad infinite area, Sketchpad area content can be permanently saved as a separate file. This program includes the following features: Formula features: - Sketchpad provides fractional, radical, radical times, index, subscript, A superscripts arranged formula, C and superscripts combination formula, Σ summation formula, Π quadrature formula also provides Greece enter letters, overline formula (expressed segments), the arc formula (expressed arc) and other mathematical formula, the formula can be pre-cut, copy, paste, natural way to enter, the natural way to edit, and consistent operation iOS text edit. File feature - New:Locked - Open:Locked - Save:Locked - Setting Editing feature - Undo - Redo - Delete - Select All - Select parents - Select children View feature - Point type - Line type - Color - Hide - Show all - Unselectable - All selectable - Hide label - Show label - Label Constructure feature - Point on objec - Midpoint - points of intersection - Line segment - Half-line - Line - Parallel line - Perpendicular line - Angular bisector - Circle - Circle of center and radius - Arc on circle - Arc of three point - Locus Transform feature - Mark center - Mark mirror - Mark angle - Mark ratio - Mark vector - Mark distance - Translation - Scale - Rotation - Mirror Measure feature - Length - Distance - Circumference - Arc length - Radius - Squard - Angle - Radian angle - Ratio: the ratio of AB measure of three ABC / AC, unit 1. - Horizontal ordinate - Vertical ordinate - Distance of coordinate Data feature - New Variable: create mathematical variable object, you can enter complex mathematical formulas, execution, subtraction, multiplication, fractions, exponentiation, but you can use the built-in 25 kinds of mathematical functions (sin, cos, tan, arcsin, arccos, arctan, sinh, cosh , tanh, arcsinh, arccosh, arctanh, exp, pow, sqrt, ln, log, round, trunc, sng, abs, min, max, arrange, combine), you can use custom variables, custom functions and parameters for calculating cost per unit (currently only supports cm and angle in radians), to use the constant π, e participate in the calculation. - New Function: Create a mathematical function objects, custom functions, variables with other calculations. Graphics feature - Define coordinate system - Define origin - Define unit length - Define origin and units length - Change graduation on axis - Mark coordinate system - Draw point - Drawing function:2 limit - Draw function curve:2 limit - Independent variable interval Mapping Toolbox functions - Arrow selection tool - Scroll Tool - Point tool - Line Tool - Circle Tool - Label Tool Auto-save feature: -Each step, Sketchpad automatically saved when the program closes workspace content or crash, after the next open draw will automatically restore the previous analysis. Two finger swipe means you can scroll sketchpad content at any time.