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What is the difference between float and double?
... + 3.9999999 = 0, the exact roots to 10 significant digits are, r1 = 2.000316228 and r2 = 1.999683772.
Using float and double, we can write a test program:
#include <stdio.h>
#include <math.h>
void dbl_solve(double a, double b, double c)
{
double d = b*b - 4.0*a*c;
dou...
What is the C++ function to raise a number to a power?
...yped so it matches one of those three perfectly. I usually use double
pow(2.0, N)
Some lawyer crap from me again. I've often fallen in this pitfall myself, so I'm going to warn you about it.
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Log to the base 2 in python
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float → float math.log2(x)
import math
log2 = math.log(x, 2.0)
log2 = math.log2(x) # python 3.4 or later
Thanks @akashchandrakar and @unutbu.
float → int math.frexp(x)
If all you need is the integer part of log base 2 of a floating point number, extracting the exponent i...
Android emulator failed to allocate memory 8
...ions/7222906/failed-to-allocate-memory-8
– Juha Palomäki
Oct 7 '13 at 12:55
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When to encode space to plus (+) or %20?
...www-form-urlencoded'. This is used for posting form data.
Now, the HTML 2.0 Specification (RFC1866) explicitly said, in section 8.2.2, that the Query part of a GET request's URL string should be encoded as 'application/x-www-form-urlencoded'. This, in theory, suggests that it's legal to use a '...
IOS: create a UIImage or UIImageView with rounded corners
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I have used this code in Swift 2.0, and it worked properly, thank you. By the way, I have changed YES by true.
– lmiguelvargasf
Aug 19 '15 at 17:31
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Putting uncommitted changes at Master to a new branch by Git
...ch. You can try checkout -m to merge.
– Jouni K. Seppänen
Nov 4 '10 at 14:00
2
I tried this but ...
How to generate the JPA entity Metamodel?
In the spirit of type safety associated with the CriteriaQuery JPA 2.0 also has an API to support Metamodel representation of entities.
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Merging two arrays in .NET
Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array?
21 Answers
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How to find the kth largest element in an unsorted array of length n in O(n)?
... i)
If i > k, return Select(G, n-k, i-k)
It's also very nicely detailed in the Introduction to Algorithms book by Cormen et al.
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