Doctor OLED X 與 Halcyon Calc Lite 使用情況與統計

Note: this app helps you detect a defect or damaged OLED screen, it cannot repair it. OLED displays have the highest contrast of any display panel. Blacks are pure black because OLED, which stands for Organic Light-Emitting Diodes, can switch off individual pixels. iPhones with OLED screens should be handled with a bit of care to avoid image persistence or screen burn-in, if you treat your new iPhone with attention you will not suffer from this and your device will have a better resale value, see vendor support article HT208191. Use this app to visually check your OLED screen if you have signs of "Image Persistence" or "Burn-In". Read about the best way to take care of it. When you want to buy/sell a (second-hand) iPhone with an OLED display, you can use this app to visually check for damage to the screen. This App does not claim to fix or repair an OLED screen which has Image Persistence, or burn-in. You can also enjoy two demo videos to check out how good looking Dolby Vision and HDR 10 are, on your iPhone OLED display. Recently we have added 4 Dolby Atmos tests for the Spacial Audio on the Air Pods Pro.

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Halcyon Calc Lite

For students, engineers, scientists or people who fondly remember classic calculators, Halcyon Calc Lite is a great application for manipulating numbers and even symbolic expressions. Features: - Use this calculator on an iPhone, iPod Touch or an iPad - Use your finger to quickly scroll through the stack to review intermediate results - Copy and paste support - Over 225 built-in operations, including trig, logarithms, real functions, complex operations and more - Allows you to work with real, complex and integer numbers. - Real and complex numbers can be displayed in standard, fixed, scientific and engineering format - Integer numbers can be displayed in decimal, hexadecimal, octal and binary bases - Work with real and complex matrices and vectors - Enter symbolic expressions and solve them for different values. Even better, solve quadratic formulas, collect and expand factors and terms, find minima, maxima and roots of any expression. - Plot symbolic expressions in X/Y coordinates. Pan the coordinate space by dragging the plot in any direction. Zoom in and out using a pinch gesture. - Determine symbolic derivative, taylor series or numeric integral of an expression. - Store numbers, lists, strings and expressions in symbols. - Store statistical data and calculate totals, averages, standard deviations, linear regressions, etc over that data. - Calculate the probabilities associated with standard distributions like the normal, F and T distributions.