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...域而使得其价值超越了作为原始产品本身。
以IBM近期对从美国本田汽车公司和太平洋电力公司收集而来的数据的应用为例，最初，太平洋煤气电力公司收集数据是为了管理其服务的稳定性，而本田收集电动汽车的数据是为了提...
Does Python have an ordered set?
... issubset = __le__
issuperset = __ge__
symmetric_difference = __xor__
symmetric_difference_update = __ixor__
union = __or__
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How to toggle a boolean?
...ing converted to a number (that is either 0 or 1), you can use the Bitwise XOR Assignment Operator. Like so:
bool ^= true; //- toggle value.
This is especially good if you use long, descriptive boolean names, EG:
var inDynamicEditMode = true; // Value is: true (boolean)
inDynamicEditMod...
What's the difference between the WebConfigurationManager and the ConfigurationManager?
... answered Mar 30 '09 at 17:50
XORXOR
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...
Peak detection in a 2D array
...ning only peaks,
#by removing the background from the local_max mask (xor operation)
detected_peaks = local_max ^ eroded_background
return detected_peaks
#applying the detection and plotting results
for i, paw in enumerate(paws):
detected_peaks = detect_peaks(paw)
pp.subplot(...
What is the best algorithm for overriding GetHashCode?
... quite how important that is.)
This is better than the common practice of XORing hashcodes for two main reasons. Suppose we have a type with two int fields:
XorHash(x, x) == XorHash(y, y) == 0 for all x, y
XorHash(x, y) == XorHash(y, x) for all x, y
By the way, the earlier algorithm is the one c...
What's the (hidden) cost of Scala's lazy val?
...) and initializes the target field in a synchronized block if the relevant xor of the bitmap indicates it is necessary.
Using:
class Something {
lazy val foo = getFoo
def getFoo = "foo!"
}
produces sample bytecode:
0 aload_0 [this]
1 getfield blevins.example.Something.bitmap$0 : int [15...
GestureDetect 扩展：手势检测扩展，识别滑动、点击和长按手势 · App Inventor 2 中文网
...滑、双击、单击和长按
简单易用：只需将布局组件绑定到扩展即可使用
非可视组件：不会占用界面空间
事件驱动：通过事件处理各种手势操作
兼容性强：适用于各种布局组件
截图
积木示例
...
Python set to list
...e', 'getattribute', 'gt', 'hash', 'iand', 'init', 'ior', 'isub', 'iter', 'ixor', 'le', 'len', 'lt', 'ne', 'new', 'or', 'rand', 'reduce', 'reduce_ex', 'repr', 'ror', 'rsub', 'rxor', 'setattr', 'sizeof', 'str', 'sub', 'subclasshook', 'xor', 'add', 'clear', 'copy', 'difference', 'difference_update', 'd...
LaTeX source code listing like in professional books
... VT = np.zeros((n*m,1), int) #dummy variable
#compute the bitwise xor matrix
M1 = bitxormatrix(genl1)
M2 = np.triu(bitxormatrix(genl2),1)
for i in range(m-1):
for j in range(i+1, m):
[r,c] = np.where(M2 == M1[i,j])
for k in range(len(r)):
...