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Floating point vs integer calculations on modern hardware
...work in C++, and we are currently using integer calculations for problems that are inherently floating point because "its faster". This causes a whole lot of annoying problems and adds a lot of annoying code.
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undefined reference to `__android_log_print'
What is wrong with my make file?
15 Answers
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Dropping Unique constraint from MySQL table
How can I drop the "Unique Key Constraint" on a column of a MySQL table using phpMyAdmin?
10 Answers
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Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
繁体中文原文：https://blog.cavedu.com/2017/02/ ... %e6%8e%a7%e5%88%b6/
本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。
App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕：Btn_Connect /&n...
How can you find the height of text on an HTML canvas?
The spec has a context.measureText(text) function that will tell you how much width it would require to print that text, but I can't find a way to find out how tall it is. I know it's based on the font, but I don't know to convert a font string to a text height.
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Keyboard shortcut to comment lines in Sublime Text 2
In Sublime Text 2 , how do I enclose a selection in a comment ?
Is there a keyboard shortcut for this action?
15 Answer...
libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
libevent对比libev的基准测试libev_libevent_bench本文档简要描述了针对 libevent 和 libev 运行 libevent 基准程序的结果。Libevent 概述Libevent（于 2000-11-14 首次发布）是一个高性能事件循环，支持简单的 API、两 Google翻译自：http://libev.schmorp....
PHP DateTime::modify adding and subtracting months
I've been working a lot with the DateTime class and recently ran into what I thought was a bug when adding months. After a bit of research, it appears that it wasn't a bug, but instead working as intended. According to the documentation found here :
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Is this a “good enough” random algorithm; why isn't it used if it's faster?
...s job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
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Using npm behind corporate proxy .pac
I need to download several packages through npm but our corporate proxy configuration is a .pac file (i'm on windows)
25 An...