PockEmul vs SymPy Editor

PockEmul is an emulator of vintage pocket computers and scientific calculators from late 70s' to end 80s'. It adapts its behavior depending on the screen size. it is usable both on iPhone and iPad. PockEmul comes with 8 models fully emulated: - The scientific calculator HP-35, HP41C (HP41CX model), HP-48GX, FX 8000G, TI 57. - The pocket computer Sharp PC 1245, Sharp PC 1350, Sharp PC 1500 and Tandy PC-2. A single subscription fee give access to all functionalities and emulated models. Current available models are : - Casio PB-100, PB-300 - Casio PB-1000, PB-1000C - Casio PB-2000C, AI-1000 - Casio VX-3, VX-4, FX-870p - Casio FX-890p, Z-1, Z-1GR - Casio FP-200, FP-200Jap - Casio FX-9000p - Sharp PC-1211 Simulator - Sharp PC 1250, PC 1251, PC 1251H, PC 1255 - Sharp PC 1260, PC 1261, PC 1262 - Sharp PC-1280, PC-1280Jap - Sharp PC 1360, PC 2500 - Sharp PC 1401, PC 1402, PC 1403, PC 1403H, PC 1421, PC 1445 - Sharp PC-1425, PC-1425Jap, PC-1450, PC-1450Jap, PC-1475, PC-1475Jap - Sharp PC 1500, PC 1500jap, PC 1500A, PC 1501,CE 150 - Sharp PC 1600, CE 1600p - Sharp PC-E500, PC-E500jap, PC-E500-BL, PC-E550, PC-E500S, PC-U6000, PC-E220, PC-G850V - Sharp Printer CE-126P - HP 41C Printer (non-HP-IL) 82143A - HP 71b - HP-335, HP-10c, HP 11c, HP 12c, HP 15c and HP 16c which are RPN calculators. - TI-74, TI-95, CC-40, TI-42, TI-55 and TI-58 calculators. PC-100 Printer - Nec PC-2001, General LBC-1100, Sanco TPC-8300, National JR-800, Canon X-07, Epson HX-20 - Elektronika MK-85 , MK-85M , MK-90 - Panasonic HHC Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Edit mathematics the way you read it. SymPy editor draws your expression as a real formula, and every piece of it responds to touch: tap a term to select it, type over it, pull it apart, or apply any function from SymPy, the Python computer algebra system that powers it all. The whole CAS runs on your phone. No account, no ads, no tracking, no network: CPython and SymPy are packaged inside the app, everything you type stays on your device, and it all works in airplane mode. EDIT FORMULAS, NOT CODE • Tap any sub-expression (a term, an exponent, a matrix entry) and edit it in place • Type over a selection, or place a caret between terms and insert • Tap an operator to change it: turn + into a product, make an equation, or delete it • Unwrap (cos θ → θ), isolate, delete, copy and paste sub-expressions • The SymPy source line under the formula follows it, and the formula follows the line: edit whichever you prefer ALL OF SYMPY, ONE TAP AWAY • Transform menu: simplify, expand, factor, partial fractions, trig rewriting and more • A menu per type: matrices offer determinant, inverse and transpose; integrals, sums, derivatives and limits offer evaluation; equations swap sides or collect everything on the left • A search box over every SymPy function, asking for the parameters each one needs • An "unevaluated" switch builds Integral(f, x) or Determinant(M) symbolically instead of computing it • A Symbols panel for assumptions (positive, real, integer…) and matrix symbols with their shapes EVERY STEP IS REMEMBERED • The history shows each step and what changed: in red what went, in green what came • Play it as a slideshow, at the speed you choose • Save it as a self-contained web page that works offline, or as a Python script that rebuilds every step with SymPy • Keep several sessions, each with its own history, all on your device FOR STUDENTS, TEACHERS AND SCIENTISTS Complete the square in front of a class, evaluate limits and integrals, manipulate matrices and N-dimensional arrays, and export the derivation when it is done. FREE AND OPEN SOURCE BSD 3-Clause, no strings attached. Worked derivations, the source code and a browser version are at https://upabjojr.github.io/sympy-editor/ — and the same editor runs in Jupyter notebooks (pip install sympy-editor).