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How does C compute sin() and other math functions?
...hev polynomials are used for most transcendentals but not all. e.g. Square root is faster to use a double iteration of Newton raphson method using a lookup table first.
Again, that book "Computer Approximations" will tell you that.
If you plan on implmementing these functions, I'd recommend to anyo...
What are namespaces?
...oller.php which is in the path:
app/Http/Controllers from the project’s root directory
There is also another controller class named: Controller.php, but this one is in the path:
vendor/laravel/framework/src/Illuminate/Routing from the project’s root directory
You don’t need to look at the s...
Adding days to $Date in PHP
I have a date returned as part of a mySQL query in the form 2010-09-17
9 Answers
9
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A semantics for Bash scripts?
...(much of the shell's arithmetic syntax semantics comes from C).
The other root of the shell's syntax comes from its upbringing as a mishmash of individual UNIX utilities. Most of what are often builtins in the shell can actually be implemented as external commands. It throws many shell neophytes fo...
Evenly distributing n points on a sphere
...um_pts); how did I come to that one? (Note 2.)
Well, I am using the square root here because I want these to have even-area spacing around the disk. That is the same as saying that in the limit of large N I want a little region R ∈ (r, r + dr), Θ ∈ (θ, θ + dθ) to contain a number of points p...
DESTDIR and PREFIX of make
...ersion installed already and not want to disturb it, or he may not even be root. So he uses
./configure --prefix=/usr
so the program will expect to be installed in /usr when it runs, then
make install DESTDIR=debian/tmp
to actually create the directory structure.
make install prefix=***
...
How to convert .pfx file to keystore with private key?
... mind that depending on who you get the certificate from (intermediate CA, root CA involved or not) or how the pfx is created/exported, sometimes they could be missing the certificate chain. After Import, You would have a certificate of PrivateKeyEntry type, but with a chain of length of 1.
To fix...
Lightweight SQL editor for Eclipse [closed]
...ditor. Search for 'toad' in eclipse market place. It has very good Oracle, MySQL and PostgreSQL support.
Take a look at Installation instructions and screenshots.
Alternatively, there is DBeaver (very good in my experience and support almost all DB's) which is built on eclipse platform and availab...
What does java:comp/env/ do?
...ione.zcu.cz/java/docs/jndi-1.2/tutorial/beyond/misc/policy.html
At the root context of the namespace
is a binding with the name "comp",
which is bound to a subtree reserved
for component-related bindings. The
name "comp" is short for component.
There are no other bindings at the
root...
How do I create a comma-separated list from an array in PHP?
...a in the array before making it into a string; For example, addslashes, or mysql_real_escape_string.
– Naphtali Gilead
Aug 21 '15 at 15:48
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