Change Focus vs LiTeX

Change Focus can help you to change the focus of your photo. In the beginning, click the center "camera" icon to save the 3D image. Then, browse the photo you just took by clicking the bottom right photo. Click the photo to change focus on the point you click. You can change the blur ratio by dragging the slider. Press the "camera" icon to save the outcome image. On the setting page, you can set the blur degree. If you think blur is insufficient, you can make it heavier (but the processing time will also increase). You can also change the display/output image resolution (the larger, the slower). You can also change the view from 2D to 3D for better recognition of view depth. And turn the flashlight on/off by clicking the "torch" icon. p.s. Change Focus uses LiDAR to detect image depth. Please launch this application using iPhone 12 Pro or later / iPad Pro 2nd or later. Because of the resolution, the boundary phenomenon of the display image will not be obvious until the output photo (larger resolution).

LiTeX is a powerful yet intuitive LaTeX equation editor for iOS. Perfect for students, scientists, engineers, and educators who need to write, render, and share mathematical expressions on the go. Perfect For: Taking Notes - Capture complex equations in your digital notes with proper mathematical notation - Integrate LaTeX equations seamlessly into your note-taking workflow - Keep all your scientific notes beautifully formatted and professional Studying & Learning - Create study materials with properly formatted mathematical expressions - Build your personal equation library for quick reference - Study math, physics, chemistry, and advanced sciences with clarity Presentations & Slideshows - Generate high-quality equation images for Keynote, PowerPoint, or Google Slides - Export equations instantly and paste them into any presentation - Impress with professional-looking mathematical notation in every slide Research & Papers - Write equations for research papers and academic documents - Share equation images via email or collaboration apps - Maintain consistency in your mathematical notation across documents Homework & Assignments - Solve problem sets with properly formatted equations - Share your work with teachers and classmates - Document your mathematical thinking clearly Key Features: Live Equation Editor - Write LaTeX equations with real-time preview - Support for multiple math modes: align, display, inline, and text - Adjustable font sizing for optimal readability - Beautiful, fast rendering with KaTeX TeXBoard - Smart Command Library - Quick access to 50+ commonly used LaTeX commands and symbols - Pre-built templates for fractions, roots, operators, and calculus notation - Save and manage your custom commands for frequently used expressions - One-tap insertion for efficient editing Export & Share - Capture equation previews as high-quality images - Share directly to Messages, Mail, Notes, or Files - One-click copy to paste into presentations and documents Customization - Choose from custom accent colors to personalize your workspace - Dark and light mode support - Multi-language support (English, Traditional Chinese) - Fully localized interface Smart Assistance - Interactive tips to guide new users - Responsive keyboard integration - Context-aware preview generation