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decimal vs double! - Which one should I use and when? [duplicate]
...ut at 1 million for a float.
A 15 digit monetary value:
£1,234,567,890,123.45
9 trillion with a double. But with division and comparisons it's more complicated (I'm definitely no expert in floating point and irrational numbers - see Marc's point). Mixing decimals and doubles causes issues:
...
Convert SVG image to PNG with PHP
...etImageFormat("png24");
$im->resizeImage(720, 445, imagick::FILTER_LANCZOS, 1); /*Optional, if you need to resize*/
/*jpeg*/
$im->setImageFormat("jpeg");
$im->adaptiveResizeImage(720, 445); /*Optional, if you need to resize*/
$im->writeImage('/path/to/colored/us-map.png');/*(or .jpg)*...
How do I show the value of a #define at compile-time?
...tring should be treated as if it were quoted. If it did then:
#define ABC 123
int n = ABC;
would not compile.
Now consider:
#define ABC abc
#pragma message "The value of ABC is: " ABC
which is equivalent to
#pragma message "The value of ABC is: " abc
This causes a preprocessor warning beca...
html5 localStorage error with Safari: “QUOTA_EXCEEDED_ERR: DOM Exception 22: An attempt was made to
My webapp have javascript errors in ios safari private browsing:
15 Answers
15
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How to see full symlink path
...e following if you have python 2.6 (or later) installed
python -c 'import os.path; print(os.path.realpath("symlinkName"))'
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Heatmap in matplotlib with pcolor?
...
123
This is late, but here is my python implementation of the flowingdata NBA heatmap.
updated:1/...
How to call a parent method from child class in javascript?
...edited Aug 20 '15 at 1:09
Seanny123
5,70277 gold badges4949 silver badges100100 bronze badges
answered Aug 7 '12 at 22:29
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How to check if command line tools is installed
I have a macbook pro with OS X 10.8.2.
XCode is installed. I know this as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is ...
Two versions of python on linux. how to make 2.7 the default
...t the change to be persistent, and now when you type python it runs your chosen 2.7, but when some program on your system tries to run a script with /usr/bin/env python it runs the standard 2.6.
Alternatively, just create a virtual environment out of your 2.7 (or separate venvs for different proj...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...但TaifunSQLite是收费的，美刀。
.aix 拓展下载：
cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语言）数据库引擎。
SQL 语句用于创建、选择、更新和删除一个或多个表中的...