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Tell Ruby Program to Wait some amount of time
... longer...
sleep(2.hours); sleep(3.days) # etc., etc.
# or shorter
sleep(0.5) # half a second
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How to calculate time in hours between two dates in iOS
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Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
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edited Oct 3 '18 at 4:25
answered Mar 7 '15 at 15:49
And...
What is the “main file” property when doing bower init?
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answered Jan 21 '14 at 18:25
Kelly J AndrewsKelly J Andrews
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Instance attribute attribute_name defined outside __init__
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Sam R.
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answered Oct 10 '13 at 9:57
sthenaultsthenault...
How to create json by JavaScript for loop?
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Simple calculations for working with lat/lon and km distance?
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The approximate conversions are:
Latitude: 1 deg = 110.574 km
Longitude: 1 deg = 111.320*cos(latitude) km
This doesn't fully correct for the Earth's polar flattening - for that you'd probably want a more complicated formula using the WGS84 reference ellipsoid (the model used fo...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
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Plot smooth line with PyPlot
... for the example!
– brezniczky
Oct 25 '19 at 15:02
1
What's the k = 3 ??
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
..., 'b': [2,3,4]})
In [4]: df
Out[4]:
a b
0 1 2
1 2 3
2 3 4
In [5]: df["A1"], df["A2"] = zip(*df["a"].map(calculate))
In [6]: df
Out[6]:
a b A1 A2
0 1 2 2 3
1 2 3 4 6
2 3 4 6 9
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