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Detecting iOS / Android Operating system
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Not working iPAD Pro: return this: Safari: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15
– Ivan Ferrer
Jun 9 at 18:24
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Converting numpy dtypes to native python types
...d_np_array), listed_np_array)
<class 'list'> [[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]]
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How do I compute derivative using Numpy?
...the derivative in a single point, the formula would be something like
x = 5.0
eps = numpy.sqrt(numpy.finfo(float).eps) * (1.0 + x)
print (p(x + eps) - p(x - eps)) / (2.0 * eps * x)
if you have an array x of abscissae with a corresponding array y of function values, you can comput approximations o...
MySQL “Group By” and “Order By”
...o do this at the very bottom of this link. http://dev.mysql.com/doc/refman/5.0/en/group-by-hidden-columns.html
If you can get am insert/update event (like a trigger) to pre-compute the concatenation of the fields you can index it and the query will be as fast as if the group by was over just the fi...
创业第一年 太特么累了 - 资讯 - 清泛网 - 专注C/C++及内核技术
...流畅，但后来发现有的手机特别卡，试了半天总结出安卓5.0以上都这毛病，找原因吧。。。呵呵，到现在也没找到！技术总监已咬碎牙准备换框架了。还有与外包团队的对接和功能整合，绝对是件麻烦事，有时觉得应该都明白就...
Unsupported major.minor version 52.0 [duplicate]
...= 54
Java SE 9 = 53
Java SE 8 = 52
Java SE 7 = 51
Java SE 6.0 = 50
Java SE 5.0 = 49
JDK 1.4 = 48
JDK 1.3 = 47
JDK 1.2 = 46
JDK 1.1 = 45
These are the assigned major numbers. The error regarding the unsupported major.minor version is because during compile time you are using a higher JDK and a lower...
ERROR: Error installing capybara-webkit:
...G: The next major version of capybara-webkit will require at least version 5.0 of Qt. You're using version 4.8.6.
Instead, if you do
brew install qt5
brew link --force qt5
you won't get that error.
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How do you implement an async action delegate method?
...5C35.8209 11.5455 35.4954 10.8521 35.4954 9.60062V6.59049C35.4954 5.28821 35.0173 4.66232 34.0034 4.66232C32.9703 4.66232 32.492 5.28821 32.492 6.59049V10.1419Z\" /\u003e\u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.846...
You need to use a Theme.AppCompat theme (or descendant) with this activity
...eme.AppCompat. That should work. I had the same problem after upgrading to 5.0 on my device and ended up setting @style/Theme.AppCompat.Light as the theme on my activity. Something not right here...
– speedynomads
Nov 18 '14 at 0:21
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JavaScript: How to find out if the user browser is Chrome?
...lman here: my Android Chrome user agent contains the "OPR" string! Mozilla/5.0 (Linux; Android 8.0.0; ASUS_Z012D Build/OPR1.170623.026) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.109 Mobile Safari/537.36, therefore isChrome() returns false.
– Frosty Z
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