School Calculator Pro vs CAJ文献阅读器

Powerful calculator that can be very simple or very advanced you choose the modes. * There are four types of calculator supported: ‒ Basic - standard calculator that allow to perform arithmetic operations as well as calculate percentages. ‒ Scientific - provides access to various algebra and trigonometric functions ‒ Programming - powerful command line calculator, just type any valid expression and it will be calculated instantly. Result will be shown in various numerical systems. ‒ Minimalistic - same as programming calculator, but with a minimalistic interface - only command line and result will be shown. * You can set up what type of calculator to show in the portrait\landscape modes in settings. * Input for trigonometric functions can be in Degrees, Radians or Grads. You can choose input type by pressing 'Deg-Rad-Grd' button. * Output can be converted to fraction, whenever possible. Click on the fraction button in order to enable this functionality. * Calculator will preserve current and previous calculations in between sessions, this function can be disabled in the settings. * Result of the calculation will be stored in history. By pressing the history button you can get access to the history where you can search through it, delete certain history items or clean up the whole history. There is a powerful help system that describes every available function with examples, click the '?' button in order to get access to the help menus. Programming and Minimalistic modes are the most powerful ones, any valid expression can be entered using the device's keyboard, and the calculator will evaluate it and show the result. Whenever possible, the calculator will reconstruct an an expression to a valid one. Here are some examples of expressions and produced result: 42+0x2a+0o52+0b101010, Result: '168' - basic arithmetic functions and ability to enter in different number bases. sin(0.5)^2+cos(0.5)^2, Result: '1' - trigonometric calculations. combinations(8,4), Result: '70' - probability calculations. 1 kg in lb, Result: '2.204623 lb' - unit conversions. 2021+100d, Result: 'Sun, April 11, 2021' - date and time functions. Hints and tips: ‒ You can choose a digital keyboard layout in the preferences. There are two layouts available - traditional for calculators with '7 8 9' in the top row or a phone dial one with '1 2 3' in the top row. Last one is more convenient in modern days. ‒ 'x**y' can be used instead of 'x^y' for calculate power of x to y, Python style. ‒ Press and hold a function button like 'cos' will open a help page for this function. ‒ Press and hold the parentheses button will place whole expression in parentheses. ‒ If part of the expression is selected, then press and hold the parentheses button, it will place selection in parentheses. ‒ Press and hold the '0' button, it will insert '00'. ‒ Press and hold the '-' button, it will change a sign of the expression. ‒ Press and hold the 'C' button, it will delete one character like the backspace button. ‒ Press and hold the copy button, it will copy input while a regular click will copy result. ‒ Press the history button if you want to see previous calculations. ‒ Tap on a history item if you want to copy it to the calculator, press and hold if you want to copy result of calculation. ‒ On the help screen, press and hold on a function name in order to instantly add it to the calculation window.

CAJ文献阅读器可以轻松实现论文文献格式的阅读与转换！ 什么是CAJ？如何阅读这种格式呢？ CAJ是中国期刊网学术文献的专用文献格式。青藤CAJ阅读器支持从知网等网站下载的CAJ、NH、KDH等格式文件的阅读与转换。 它可以轻松阅读各种论文格式的文件。当撰写时需要引用论文文献时，本软件可以自动文字识别进行复制，即使原始论文中是扫描的图片也可以轻松识别！ 软件特点： 1. CAJ格式转PDF： 将CNKI知网等CAJ文件转成PDF后可立刻阅读，可以保持原有格式与质量，大部分可以复制文字。 2. CAJ格式转Word： 转成Word文件，可以高质量地转成Office文档，可以保证所有内容文字可以复制与编辑。 3. 各种论文格式在线离线阅读 支持CAJ、NH、KDH格式文件的在线与离线阅读。 4. 方便外部CAJ文件的搜索与导入 支持从微信QQ等软件导入文件，如果授予设备存储权限，可以搜索本机的文献格式文件，点击即可转换与阅读。 5. 支持阅读记录的收藏 阅读过的论文文献文件可以实时查看，可以随时找到并管理阅读过的文件。 如果您选择购买VIP会员资格，将向您的iTunes帐户支付费用，并且您的帐户将在本期结束前24小时内支付续费。购买后，您可以随时通过在iTunes商店中的设置关闭自动续订。价格以人民币为单位，在中国以外的国家可能会有所不同，如有更改，恕不另行通知。 隐私政策： https://www.zkmeitian.com/page/privacy/qtcajreader 使用协议： https://www.zkmeitian.com/page/agreement/qtcajreader