Qedra vs Arctic Calculator (Science)

Work through supported calculus, algebra and matrix problems offline, with exact answers and steps you can follow. Qedra brings university mathematics to your iPhone and iPad. Calculations run on your device, even in airplane mode. No account is needed. BUILD THE PROBLEM YOU MEAN Enter derivatives, integrals and limits with guided fields. Use a matrix grid for determinants, inverses, row reduction, rank and eigenvalues. Check the live preview before solving, or type directly with the mathematics keyboard. UNDERSTAND THE WORKING Open a step to read its named rule, explanation and assumptions. Fractions stay exact. Where a verification check is available, Qedra shows its result and limitations. Some inputs remain symbolic or receive a method-limit explanation. KEEP YOUR REVISION NOTES Save useful problems in a course notebook, add your own notes and labels, search your collection and mark topics to revisit. Saved problems keep their original notation, operation and real or complex setting. Notebooks stay on this device. PRACTISE WITH HINTS Try a problem yourself, ask for a hint and reveal the solution one step at a time. Supported practice topics include power-rule derivatives, polynomial integrals, integration by parts, 2 × 2 determinants and linear equations. Scratch work is not automatically graded. MATHEMATICS FOR YOUR COURSEWORK - Algebra, equations and inequalities - Limits, derivatives and supported integrals - Partial derivatives, multiple integrals and vector calculus - Exact determinants, inverses, row reduction, rank and eigenvalues - Discrete mathematics, probability and statistics - Complex arithmetic Decimal-comma input, notation settings, a rule reference library and translated explanations help you follow the mathematics in your own way. START WITH THE FREE TIER Get unlimited answers, three full worked solutions per day, the most recent 100 unpinned history entries, one course notebook and one practice example per topic. Pinned history stays until you delete it. Text sharing and copying answers as LaTeX are included. The free tier can show a banner on the Solve screen. QEDRA PRO Pro adds unlimited worked solutions and history, more course notebooks, additional practice variations, formatted solution PDF export and no ads. PDFs include the answer, working, assumptions and verification. Existing notebooks remain readable and editable if Pro ends. Choose a monthly or annual subscription, or a one-time Lifetime purchase. Localized prices, billing periods and any eligible offer are shown before you purchase. Lifetime does not renew. Your problems and notebook notes are not uploaded to a Qedra server or sent to the advertising partner. Purchases and advertising services can use an internet connection; see the privacy policy for their data practices. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Payment is charged to your Apple Account at confirmation, or after an eligible trial as shown before purchase. Manage or cancel in Settings > your Apple Account > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mwsupplylimited.github.io/qedra/privacy.html

Scientific calculator, equation solver and graphing tool for iPhone and iPad. Touch any number: move it, change an old calculation, or hold the answer to see how it was worked out. No account, no ads, no subscription, no tracking. It works without internet. CALC - Hold a number and drag it: the answer follows, and is calculated for real when you let go - A paper tape of your latest calculations: change an old one and the rows that carry on from it are recalculated - Hold the answer for the work step by step, other forms (fraction, percent, hexadecimal) and how it was checked - Type in words: "20% off 480", "5 km to mi", "15% tip on 845 split 4" - Swipe the answer up to see 20, 40 or 60 checked digits SOLVE - Type the problem and the app figures out what kind it is - Equations, inequalities, systems, derivatives, integrals and limits, step by step - Steps in two levels, Simple or Advanced - Every answer says how it was checked, and many come with a drawing MORE IN SOLVE - Probability, statistics, finance, chemistry, units and bits - Complex numbers, matrices, vectors and differential equations - Series, number theory and geometry GRAPH - 2D and 3D graphs: pan, zoom and rotate with your fingers - Your graph saves itself; points, your own functions and derivatives - Trace, Tangent and Table one tap away, with undo and redo - Roots, maxima, minima and intersections with more digits - 3D surfaces that move live with the sliders - Jumps and asymptotes are drawn as breaks, with no fake lines DATA - Paste data from a spreadsheet and get a summary right away - Mean, median, standard deviation, regression and confidence intervals - A short explanation of what your results mean LEARN AND LIB - A question a day, practice that follows your mistakes and a daily goal you can see - Formulas for algebra, geometry, physics, chemistry and more, sent to CALC, GRAPH or SOLVE with one tap GEOMETRY - Points, lines and circles you can move, with exact measures MADE FOR YOUR SCREEN - On iPad it uses the space with several panes at once - Landscape layouts, and it respects the Dynamic Island - Larger Text, VoiceOver, dark mode and five accent colors - Runs well on phones that are a few years old WIDGETS, SHORTCUTS AND SIRI - Six widgets, including a calculator you can use from the Home Screen - "Calculate in Arctic" with Siri and Shortcuts IN YOUR LANGUAGE - English and Spanish, following your device language - Numbers in your region's format: 1,234.5, 1.234,5 or 1 234,5 PRIVATE Your history, saved values and settings stay on your device. The app never connects to the internet and has no ads or analytics SDKs. For students, teachers and engineers who want their math and their data to stay on their device.