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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...如下的LP问题：
在模型窗口中输入如下代码：
min=2*x1+3*x2;
x1+x2>=350;
x1>=100;
2*x1+x2<=600;
然后点击工具条上的按钮 即可。
例1.2 使用LINGO软件计算6个发点8个收点的最小费用运输问题。产销单位运价如下表。
销地
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Output data from all columns in a dataframe in pandas [duplicate]
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Erel Segal-Halevi
23.9k2424 gold badges8686 silver badges141141 bronze badges
answered Nov 5 '12 at 18:13
YarivYariv
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How do you rotate a two dimensional array?
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13 Answers
13
Active
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Can't install Ruby under Lion with RVM – GCC issues
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553
This answer was edited multiple times and now contains several alternative solutions. Try the...
Regular expression to match standard 10 digit phone number
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^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$
Matches the following
123-456-7890
(123) 456-7890
123 456 7890
123.456.7890
+91 (123) 456-7890
If you do not want a match on non-US numbers use
^(\+0?1\s)?\(?\d{3}\)?[\s.-]\d{3}[\s.-]\d{4}$
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I want to install pip . It should support Python 3, but it requires setuptools, which is available only for Python 2.
21 A...
Difference between numpy.array shape (R, 1) and (R,)
...ers:
>>> a = numpy.arange(12)
>>> a
array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11])
Then a consists of a data buffer, arranged something like this:
┌────┬────┬────┬────┬────┬────┬────┬────...
How can I verify if one list is a subset of another?
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131
The performant function Python provides for this is set.issubset. It does have a few restrictio...
Auto-center map with multiple markers in Google Maps API v3
This is what I use to display a map with 3 pins/markers:
7 Answers
7
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