EZ Engineering Calculator vs calculator HD⁻

A serious engineering calculator that opens ready to use, with nothing interrupting you. ENGINEERING MODE Five keypad pages, from everyday arithmetic to graduate maths: • Functions: x^y, square and cube roots, nth root, |x|, n!, e^x, ln, log, log2, mod, floor, ceil • Trigonometry: sin/cos/tan, inverse, hyperbolic and inverse hyperbolic, degrees or radians • Discrete: permutations nPr, combinations nCr, GCD, LCM, AND/OR/XOR/NOT, bit shifts • Analysis: series, products, derivative d/dx, definite integral, mean, median, standard deviation, variance • Constants: pi, tau, e, phi, plus 15 physical constants including the speed of light, the gravitational constant, Planck's constant and Avogadro's number Derivatives use central differences and integrals use adaptive Simpson quadrature, not lookup approximations. Bitwise work shows hexadecimal, octal and binary side by side, with two's complement for negative numbers. Memory keys M+, M-, MR, MC and cursor keys let you go back and edit a long expression instead of retyping it. Expressions honour parentheses and operator precedence, and the result previews as you type, so you rarely need the equals key. UNIT CONVERSION 224 units across 15 categories: length, weight, volume, area, speed, time, temperature, pressure, power, energy, data, density, angle, force and electricity. Temperature uses the correct formulas rather than a scaled ratio. CURRENCY CONVERSION 166 currencies, updated daily. See one amount in several currencies at once, and type an expression straight into the amount field. Rates are stored on the device, so it keeps working offline. WHAT THE PAID VERSION GIVES YOU • No advertising of any kind, and no in-app purchases • Opens directly into the calculator, in engineering mode ALSO • 20 languages, with number formatting that follows your region • Dark mode • No account, no sign-in Privacy: no personal data is collected, and what you type never leaves your device.

This app uses the basic functions of the calculator to make the simplest, best calculator in the app store. And it can record the operation process completely, and can check and edit at any time. Designed with simplicity, usability and beauty in mind! Elegant & Intuitive interface Displays both the equation & the result at the same time Supports many scientific functions Multiple themes Application subscription: 1. Subscription Service: Quarterly Member (3 months) 2. Subscription price: ￥18 / quarter for consecutive quarterly membership 3. Payment: After the user confirms the purchase and the payment is credited to the iTunes account 4. Apple iTunes account will deduct the fee within 24 hours before the expiration, and the subscription cycle will be extended by one after the successful deduction 5. During the subscription period, you can use all key sounds to calculate data 6. The subscription will be automatically renewed for the same price and period (one year) as before, unless the automatic renewal is closed at least 24 hours in advance before the end of the current subscription period 7. After purchase, users can manage subscription and turn off automatic renewal in account Settings. For more information please go to: http://support.apple.com/kb/ht4098" Please refer to the following links for terms of Service and Privacy policy: Privacy policy: https://cdn.40sishi.com/app/resources/jisuanqihd/privacy.html Service agreement: https://cdn.40sishi.com/app/resources/jisuanqihd/vipservice.html The price is equal to the price of a subscription in DOLLAR terms specified in Apple's App Store Pricing Table.