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How to write log base(2) in c/c++
Is there any way to write log(base 2) function?
14 Answers
14
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Python dictionary: Get list of values for list of keys
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213
A list comprehension seems to be a good way to do this:
>>> [mydict[x] for x in myke...
How to use gradle zip in local system without downloading when using gradle-wrapper
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2
The truth is that I can never download gradle in ternimal, too slow
– Shaw
Nov 25 '15 at 15:42
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What's the difference between RANK() and DENSE_RANK() functions in oracle?
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248
RANK gives you the ranking within your ordered partition. Ties are assigned the same rank, wit...
PHP: merge two arrays while keeping keys instead of reindexing?
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You can simply 'add' the arrays:
>> $a = array(1, 2, 3);
array (
0 => 1,
1 => 2,
2 => 3,
)
>> $b = array("a" => 1, "b" => 2, "c" => 3)
array (
'a' => 1,
'b' => 2,
'c' => 3,
)
>> $a + $b
array (
0 => 1,
1 => 2,
2 ...
Dealing with multiple Python versions and PIP?
...xample, I want to use pip to explicitly install things to either my site 2.5 installation or my site 2.6 installation.
23...
How to silence output in a Bash script?
...ou'll want to silence that. You can do that by redirecting file descriptor 2:
# Send stdout to out.log, stderr to err.log
myprogram > out.log 2> err.log
# Send both stdout and stderr to out.log
myprogram &> out.log # New bash syntax
myprogram > out.log 2>&1 # Older sh ...
Compare double to zero using epsilon
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Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000...
What is the maximum value for an int32?
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