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How can I use numpy.correlate to do autocorrelation?
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To answer your first question, numpy.correlate(a, v, mode) is performing the convolution of a with the reverse of v and giving the results clipped by the specified mode. The definition of convolution, C(t)=∑ -∞ < i < ∞ aiv...
What is the “right” way to iterate through an array in Ruby?
PHP, for all its warts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do
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【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...
...口(GDI)中的画刷
CButton类：提供Windows按钮控件的功能
CByteArray类：该类支持动态的字节数组
CCmdUI类：该类仅用于ON_UPDATE_COMMAND_UI处理函数中
CColorDialog类：封装标准颜色对话框
CDC类：定义设备环境对象类
CDialog类：所有对...
How to tell whether a point is to the right or left side of a line
...ct sets. To do this, I choose two points ( a and b ) and draw an imaginary line between them. Now I want to have all points that are left from this line in one set and those that are right from this line in the other set.
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What is the rationale for all comparisons returning false for IEEE754 NaN values?
Why do comparisons of NaN values behave differently from all other values?
That is, all comparisons with the operators ==, =, where one or both values is NaN returns false, contrary to the behaviour of all other values.
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What is the best way to determine the number of days in a month with JavaScript?
...his function but I'd like to know what's the most efficient and accurate way to get it.
15 Answers
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How to perform .Max() on a property of all objects in a collection and return the object with maximu
...s that have two int properties. The list is the output of another linq query. The object:
9 Answers
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Swift variable decorations with “?” (question mark) and “!” (exclamation mark)
...understand that in Swift all variables must be set with a value, and that by using optionals we can set a variable to be set to nil initially.
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How to create custom easing function with Core Animation?
I am animating a CALayer along a CGPath (QuadCurve) quite nicely in iOS. But I'd like to use a more interesting easing function than the few provided by Apple (EaseIn/EaseOut etc). For instance, a bounce or elastic function.
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How do I scroll the UIScrollView when the keyboard appears?
I'm having trouble with my code. I'm trying to move the UIScrollView when I'm editing an UITextField that should be hidden by the keyboard pop.
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