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ValueError: math domain error

...gt;>> log(-1) Traceback (most recent call last): File "<pyshell#59>", line 1, in <module> log(-1) ValueError: math domain error Without knowing what your newtonRaphson2 function does, I'm not sure I can guess where the invalid x[2] value is coming from, but hopefully this w...
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How to crop an image using PIL?

... | edited Mar 22 '15 at 19:08 Bill Lynch 68k1313 gold badges108108 silver badges155155 bronze badges ...
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Hidden Features of JavaScript? [closed]

... community wiki 5 revs, 4 users 68%Mark Cidade 117 ...
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How to split a sequence into two pieces by predicate?

... 195 By using partition method: scala> List(1,2,3,4).partition(x => x % 2 == 0) res0: (List[I...
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Why does substring slicing with index out of range work?

...ppens when you do the same thing to a list: >>> [0, 1, 2, 3, 4, 5][3] 3 >>> [0, 1, 2, 3, 4, 5][3:4] [3] Here the difference is obvious. In the case of strings, the results appear to be identical because in Python, there's no such thing as an individual character outside of a st...
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Generate array of all letters and digits

... 145 [*('a'..'z'), *('0'..'9')] # doesn't work in Ruby 1.8 or ('a'..'z').to_a + ('0'..'9').to_a # ...
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Compare version numbers without using split function

... 5 Answers 5 Active ...
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Matplotlib: “Unknown projection '3d'” error

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rspec 3 - stub a class method

...t I put in the stub – sixty4bit Mar 5 '15 at 16:34 FWIW, this form would crash my ruby interpreter. However, and_retu...
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How do I write a “tab” in Python?

... 158 This is the code: f = open(filename, 'w') f.write("hello\talex") The \t inside the string is...