Matrix Wise Matrix Calculator vs OpenHTML

Easily perform and explore matrix operations on your iPhone or iPad. Work with 1, 2, or 3 matrices, each with custom dimensions up to 4×8, using an intuitive UI designed for clarity and speed. Select the number of matrices, choose an operation from the picker, and input values using a built-in keyboard that supports numbers, letters, symbols, and functions. You can also enter full expressions like `1 + 1/2`, `pow(2, 3)`, or `sqrt(2)` directly into any matrix cell. Need to fill a matrix quickly? Use dedicated buttons to initialize with zeroes, ones, random values, sequences, or the identity matrix. Perform essential tasks like transpose, determinant, and inverse with just a tap. Whether you're a student, educator, or engineer, this app provides a powerful and flexible matrix interface right at your fingertips. Key Features: • Select 1, 2, or 3 matrices, each up to 4×8 in size • Customize row and column count for each matrix • Choose operations: ◦ Addition (+) ◦ Subtraction (−) ◦ Hadamard product (*) ◦ Element-wise division (/) ◦ Matrix multiplication (@) • Scalar and matrix operations (e.g. multiply a matrix with a scalar) • Echelon form, row-echelon form, reduced row-echelon form transformation • QR factoring (QR decomposition) • LU decomposition with or without pivoting, Crout's algorithm without pivoting • Tap to edit any matrix cell using a built-in keyboard • Keyboard positioning: no keyboard, left, center, right • Keyboard modes: numbers, letters, symbols, functions • Supports math expressions like `1 + 2/3`, `sqrt(2)`, `pow(2, 3)` • Matrix initialization buttons: ◦ AC – All zeroes ◦ ONE – All ones ◦ RND – Random values ◦ SEQ – Sequential values ◦ EYE – Identity matrix ◦ AAC – Set all matrices to zero • Special keys: ◦ BS – Backspace ◦ CLR – Clear selected element ◦ PST – Paste the computed result into a matrix • One-tap actions for: ◦ Transpose (T) ◦ Determinant (Det) ◦ Inverse (Inv) • Expression parser supports basic math and functions: ◦ sqrt, pow, log, exp, sin, cos, tan, and more Designed to make matrix math approachable and efficient, with support for both numeric input and expressions. Note For 3-matrix computation, the multiplication and division operators take precedence over addition and subtraction. You can enter fractions as input (e.g., 1 + 1/2), but the output is always displayed in decimal form.

OpenHTML is a private, on-device viewer for HTML, Markdown, ZIP web projects and source files on iPhone and iPad. Open files from Files, Mail, chat apps, AI tools or Safari. Preview pages offline, inspect what went wrong when a file does not render, and export finished pages when you need a clean copy. What you can do: - Open .html, .htm, .xhtml and Markdown files - Import ZIP archives and multi-file web projects - Render LaTeX math in Markdown offline, with no scripts - Preview local pages with network access off by default - Diagnose missing files, blocked resources and JavaScript issues - View JSON, XML and source files with a code-friendly reader - Export full pages to PDF or long images with OpenHTML Pro - Keep selected files in your OpenHTML folder in iCloud Drive and open them on your other devices with OpenHTML Pro Private by default: OpenHTML has no accounts, no analytics and no ads. Files are copied into the app's private storage and stay on your device unless you add them to your own OpenHTML folder in iCloud Drive. Remote resources stay blocked unless you choose to allow them for a trusted document. OpenHTML is designed for developers, students, researchers, writers and anyone who receives HTML reports, AI-generated pages, saved webpages or packaged web projects and wants to inspect them safely on iOS.