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C# Double - ToString() formatting with two decimal places but no rounding
...String("0.##"); //24.1
d3.ToString("0.##"); //24
http://dobrzanski.net/2009/05/14/c-decimaltostring-and-how-to-get-rid-of-trailing-zeros/
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How to select rows from a DataFrame based on column values?
...type, this is a very useful way to do it.
Given
np.random.seed([3,1415])
d1 = pd.DataFrame(np.random.randint(10, size=(10, 5)), columns=list('ABCDE'))
d1
A B C D E
0 0 2 7 3 8
1 7 0 6 8 6
2 0 2 0 4 9
3 7 3 2 4 3
4 3 6 7 7 4
5 5 3 7 5 9
6 8 7 6 4 7
7 6 ...
How can I determine whether a 2D Point is within a Polygon?
...oat v1y2,
float v2x1, float v2y1, float v2x2, float v2y2
) {
float d1, d2;
float a1, a2, b1, b2, c1, c2;
// Convert vector 1 to a line (line 1) of infinite length.
// We want the line in linear equation standard form: A*x + B*y + C = 0
// See: http://en.wikipedia.org/wiki/Li...
代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...com.android.tools.r8.utils.R0.a(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:126)
[java] at com.android.tools.r8.D8.main(R8_8.2.2-dev_53a55043254cc5be8ef500331bba25d1b4ca4bc2cd66c555d4358bf672a1f10a:5)
&nb...
Reordering of commits
... -> master) Fourth commit
9a24b81 Third commit
7bdfb68 Second commit
186d1e0 First commit
I want to reorder commits 9a24b81 (Third commit) and 7bdfb68 (Second commit). To do this, I first find the commit before the first commit we want to change. This is commit 186d1e0 (First commit).
The comm...
C# operator overload for `+=`?
...lib]System.Decimal)
IL_0016: stloc.0
Now lets see this code:
Decimal d1 = 10M;
d1 += 10M;
Console.WriteLine(d1);
And IL-code for this:
IL_0000: nop
IL_0001: ldc.i4.s 10
IL_0003: newobj instance void [mscorlib]System.Decimal::.ctor(int32)
IL_0008: stloc.0
IL_0009: ldloc....
Applying a function to every row of a table using dplyr?
...r_0.8.0.9000
library(purrr) # purrr_0.2.99.9000
library(microbenchmark)
d1_count <- 1000
d2_count <- 10
d1 <- data.frame(a=runif(d1_count))
do_fn <- function(row){data.frame(a=row$a, b=runif(d2_count))}
do_fn2 <- function(a){data.frame(a=a, b=runif(d2_count))}
op <- microbenc...
Finding the number of days between two dates
...e() and strftime() syntax. The time interval syntax can be found here: php.net/manual/en/dateinterval.format.php
– Andrew
Jun 4 '13 at 7:56
1
...
What's the difference between a proxy server and a reverse proxy server? [closed]
...:
Apple Trailers uses Akamai
Jquery.com hosts its JavaScript files using CloudFront CDN (sample).
etc.
2) The administrator of Z is worried about retaliation for content hosted on the server and does not want to expose the main server directly to the public.
a) Owners of Spam brands such as "...
Why is my git repository so big?
...Edit: Here's Ian's one liner for recreating all branches in the new repo:
d1=#original repo
d2=#new repo (must already exist)
cd $d1
for b in $(git branch | cut -c 3-)
do
git checkout $b
x=$(git rev-parse HEAD)
cd $d2
git checkout -b $b $x
cd $d1
done
...