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python numpy ValueError: operands could not be broadcast together with shapes
...ultiplication, but * does something else.
We have two arrays:
X, shape (97,2)
y, shape (2,1)
With Numpy arrays, the operation
X * y
is done element-wise, but one or both of the values can be expanded in one or more dimensions to make them compatible. This operation are called broadcasting. D...
Using Rails 3.1, where do you put your “page specific” JavaScript code?
...ered Jul 31 '11 at 20:23
welldan97welldan97
2,93322 gold badges1919 silver badges2727 bronze badges
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Reset C int array to zero : the fastest way?
...eset to zeros" an array of objects of any type without having to resort to hacks like memset. Basically, this is a C analog of C++ function template, except that you have to specify the type argument explicitly.
On top of that you can build a "template" for non-decayed arrays
#define ARRAY_SIZE(a)...
Get Character value from KeyCode in JavaScript… then trim
...
falgranado
971111 bronze badges
answered Nov 20 '09 at 18:23
David HellsingDavid Hellsing
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请停下来重新想下 你究竟为何创业？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...有全市界。能够在某个行业中占有一席之地已经不再是的终极目标，他们想要支配整个市场。有老顾客时常光顾，偶尔接接新客也喂不饱他们逐渐膨胀的野心了，他们要俘虏顾客才满意。
事实上，如今如果你不为互联网唱颂歌...
Parsing IPv6 extension headers containing unknown extensions
...etely un-extensible design... at least without in-band signaling and other hacks. That's excusable in an application protocol where you control both ends and only have to account for new versions of your app, but not in something designed to last for... hundreds of years?
– Ad...
Excel “External table is not in the expected format.”
...ibe), but the explanation still solved the problem for me: "Save As" Excel 97-2003, and error fixed.
– Jeff Davis
May 17 '11 at 15:34
4
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Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...01 版公布，以及从此如何艰难地一步一个脚印地在全世界hacker 的帮助下最后推出比较完善的1.0 版本这段时间的发展经过，也即对Linux 的早期发展历史进行详细介绍。
对于Linux的一般发展史，许多文章和书籍都有介绍，这...
Suppress Scientific Notation in Numpy When Creating Array From Nested List
...n the large numbers:
print(a) #prints [0.000010 22.000000 1234567799999999979944197226496.000000]
We've force-suppressed the exponential notation, but it is not rounded or justified, so specify extra formatting options:
np.set_printoptions(suppress=True,
formatter={'float_kind':'{:0.2f}'.for...
is there a css hack for safari only NOT chrome?
im trying to find a css hack for just safari NOT chrome, i know these are both webkit browsers but im having problems with div alignments in chrome and safari, each displays differently.
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