考研数学公式 vs EqualMath

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Designed for Apple Pencil and iPad, version 3.1.7 now lets you quickly sketch with basic elements — points, lines, and shapes — to support theoretical exploration. Function graphs are included. Core features are free.But includes some paid features: linked point function, hidden circle and color block function, creating more than 5 folders, radian display in the plane coordinate system, 3D coordinate system, vector arrow, parametric equation, water drop coloring, etc. Beyond geometry, sticky notes are central: pin them to the canvas to highlight key steps, while unwanted ink can be erased to keep your workspace clean. ### Additional Features 1. **Handwritten uppercase letter recognition** – instantly names vertices as you draw geometric figures. Turn it off to use freeform handwriting for names. 2. **Export to Photos** – one-tap export with no watermark. 3. **Import from Photos** – insert an image directly onto the canvas (display only, no recognition). Supports importing PDF files. 4. **Points, lines, and shapes** – select what you need. A key highlight: drag from a vertex of any shape to create a new point – no need to open the menu. 5. **Lasso tool** – select content or activate locked geometry elements. For points, three selection methods are supported: draw a line near the point, draw a line that passes through the point, or draw a small circle around it. 6. **Paint bucket** – fills enclosed geometric figures and regions, dynamically sensing surrounding areas to some extent. 7. **Infinite canvas** – the canvas automatically expands in all directions as you add more ink. 8. **Function graphs** – plot single-variable expressions and parametric equations. 9. **Multi-point linkage** – explore geometric problems involving multiple moving points. 10. **3D coordinate system** – the current release introduces a 3D coordinate space where you can place points and set spatial coordinates. 11. **3D Geometric Shapes: triangular prism, quadrangular prism, cylinder, cone, triangular pyramid, quadrangular pyramid Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/