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How do you round a floating point number in Perl?
... and floor()?
Trig functions?
Remember that int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implement...
How is “int* ptr = int()” value initialization not illegal?
...
110
int() is a constant expression with a value of 0, so it's a valid way of producing a null pointe...
Share Large, Read-Only Numpy Array Between Multiprocessing Processes
I have a 60GB SciPy Array (Matrix) I must share between 5+ multiprocessing Process objects. I've seen numpy-sharedmem and read this discussion on the SciPy list. There seem to be two approaches-- numpy-sharedmem and using a multiprocessing.RawArray() and mapping NumPy dtype s to ctype s. ...
How to check BLAS/LAPACK linkage in NumPy and SciPy?
...
edited Dec 16 '19 at 11:30
Demi-Lune
1,22822 gold badges1010 silver badges1919 bronze badges
answered O...
What does this square bracket and parenthesis bracket notation mean [first1,last1)?
...rst1 (and includes it), but ends just before last1.
Assuming integers:
(0, 5) = 1, 2, 3, 4
(0, 5] = 1, 2, 3, 4, 5
[0, 5) = 0, 1, 2, 3, 4
[0, 5] = 0, 1, 2, 3, 4, 5
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...
Designing function f(f(n)) == -n
...w about:
f(n) = sign(n) - (-1)n * n
In Python:
def f(n):
if n == 0: return 0
if n >= 0:
if n % 2 == 1:
return n + 1
else:
return -1 * (n - 1)
else:
if n % 2 == 1:
return n - 1
else:
return -1 * (n ...
What's the best practice to round a float to 2 decimals? [duplicate]
...
160
I was working with statistics in Java 2 years ago and I still got the codes of a function that a...
The $.param( ) inverse function in JavaScript / jQuery
...eparam
– Felipe Castro
Jan 8 '13 at 0:52
2
Unfortunately the github page hasn't seen any updates ...
CSS: bolding some text without changing its container's size
...h a little compromise, I used text-shadow instead.
li:hover {text-shadow:0px 0px 1px black;}
Here's a working example:
body {
font-family: segoe ui;
}
ul li {
display: inline-block;
border-left: 1px solid silver;
padding: 5px
}
.textshadow :hover {
text-shadow: 0px 0p...
How do I get an object's unqualified (short) class name?
...
jeremysawesome
6,15733 gold badges3030 silver badges3232 bronze badges
answered Nov 11 '13 at 15:09
lonesomedaylonesomeday
...