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Printing the correct number of decimal points with cout
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With <iomanip>, you can use std::fixed and std::setprecision
Here is an example
#include <iostream>
#include <iomanip>
int main()
{
double d = 122.345;
std::cout << std::fixed;
std::cout <...
Numpy where function multiple conditions
... change your two criteria to one criterion:
dists[abs(dists - r - dr/2.) <= dr/2.]
It only creates one boolean array, and in my opinion is easier to read because it says, is dist within a dr or r? (Though I'd redefine r to be the center of your region of interest instead of the beginning, so r...
Quickest way to convert a base 10 number to any base in .NET?
...c string IntToString(int value, char[] baseChars)
{
string result = string.Empty;
int targetBase = baseChars.Length;
do
{
result = baseChars[value % targetBase] + result;
value = value / targetBase;
}
while (value > 0);...
How comment a JSP expression?
How can I comment a JSP expression like: <%= map.size() %>
7 Answers
7
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How to log SQL statements in Grails
...og both where clause parameters and column values extracted from query result sets. To log only where clause parameters, use trace 'org.hibernate.type.BasicBinder'
– GreenGiant
Aug 12 '15 at 14:13
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Can I change the Android startActivity() transition animation?
..., in the new activity, run another animation. See this code:
fadein.xml
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true">
<alpha android:fromAlpha="1.0"
android:toAlpha="0.0"
android:duration="500"/> //Time in ...
How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?
...drive the compiler to compute this sum while compilation and print the result when compilation completes. As a hint, he told me that I may use generics and pre-processor features of the compiler. It is possible to use C++, C# or Java compiler. Any ideas???
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How to apply two CSS classes to a single element
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1) Use multiple classes inside the class attribute, separated by whitespace (ref):
<a class="c1 c2">aa</a>
2) To target elements that contain all of the specified classes, use this CSS selector (no space) (ref):
.c1.c2...
Does Python support short-circuiting?
...cs; they evaluate each element of a sequence in-order, until finding a result that allows an early exit in the evaluation. Consider examples below to understand both.
The function any() checks if any element is True. It stops executing as soon as a True is encountered and returns True.
>>&...
Inputting a default image in case the src attribute of an html is not valid?
Is there any way to render a default image in an HTML <img> tag, in case the src attribute is invalid (using only HTML)? If not, what would be your lightweight way to work around it?
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