Simple Calculation without Integration
Q: Compute without integration. A: We know , Therefore, Therefore, The normal method: –EOF (The Ultimate Computing & Technology Blog) — 690 words The Permanent URL is: Simple Calculation …
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Proof without Words: 1 + 2 + 3 + .. (n – 1) = Cn2
Google ‘Proof without Words‘ you will find some interesting figures that are easy to understand. For example, the following figure is a vivid proof of the math formula Hint: …
Disable Buggy Compiler Warnings Undefined Function Return for Delphi 2007
Before Delphi 2007, sometimes you will have a warning showing up for lengthy functions, even if you have defined return value at the begining of the function, for example: …
Rectangle Intersection Testing Algorithm
Given two rectangles (as shown in the following figure), , are lower-left points while and are top-right points. We want to find out whether these two rectangles overlap each …
Enable Pipelines in Windows Batch Programming
September 19, 2012
batch script, beginner, DOS, I/O File, implementation, programming languages, string, tricks, windows, windows command shell
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Previously, I have programmed some scripts in Windows Batch, and these can be found in the github. For example, the rot13.bat rotates given input string (command line parameters) to …