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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
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The documentation for Range† says this:
Ranges constructed using .. run from the beginni...
How can I get nth element from a list?
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156
Look here, the operator used is !!.
I.e. [1,2,3]!!1 gives you 2, since lists are 0-indexed.
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Print a list in reverse order with range()?
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Why is debugging better in an IDE? [closed]
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108
Some examples of some abilities that an IDE debugger will give you over trace messages in code...
Test whether string is a valid integer
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Asterisk in function call
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* is the "splat" operator: It takes a list as input, and expands it into actual positional arg...
Concatenating two one-dimensional NumPy arrays
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From the NumPy documentation:
numpy.concatenate((a1, a2, ...), axis=0)
Join a sequence of arrays together.
It was trying to interpret your b as the axis parameter, which is why it complained it couldn't convert it into a scalar.
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in_array multiple values
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answered Sep 24 '11 at 23:51
Mark ElliotMark Elliot
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Test if string is a number in Ruby on Rails
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