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Function to calculate distance between two coordinates
...* f - f * f ' "Eccentricity"
Dim beta As Double = (a / Math.Sqrt(1.0 - e * Math.Sin(lat1) * Math.Sin(lat1)))
Dim cos As Double = Math.Cos(lat1)
Dim x As Double = beta * cos * Math.Cos(long1)
Dim y As Double = beta * cos * Math.Sin(long1)
Dim z As Double = beta * (1 - e) * M...
How to check if a String is numeric in Java
...lly efficient than doing a regex matching.
UPDATE: As pointed by Jean-François Corbett in the comment, the above code would only validate positive integers, which covers the majority of my use case. Below is the updated code that correctly validates decimal numbers according to the default locale ...
Change Circle color of radio button
...m/apk/res-auto"
Minimum Example should look like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height=...
Reducing the space between sections of the UITableView
...er)section {
if (section == 0) {
return 6.0;
}
return 1.0;
}
- (CGFloat)tableView:(UITableView*)tableView
heightForFooterInSection:(NSInteger)section {
return 5.0;
}
- (UIView*)tableView:(UITableView*)tableView
viewForHeaderInSection:(NSInteger)sect...
Android adding simple animations while setvisibility(view.Gone)
...view.animate().alpha(0.0f);
This fades it back in:
view.animate().alpha(1.0f);
This moves a View down by its height:
view.animate().translationY(view.getHeight());
This returns the View to its starting position after it has been moved somewhere else:
view.animate().translationY(0);
You ca...
With Spring can I make an optional path variable?
...
Currently using this method for a spring 3.1 project, and the docs say that it works for 2.5+, so it definitely works for Spring 3. EDIT: source.
– Evan B.
Mar 22 '13 at 16:21
...
Android on-screen keyboard auto popping up
...ftInputMode="stateHidden"
>
This works for Android 3.0, 3.1, 3.2, 4.0 - Editor Used to Compile (Eclipse 3.7)
Place the 'windowSoftInputMode="stateHidden"' in your application's manifest XML file for EACH activity that you wish for the software keyboard to remain hidden in. This m...
How to assign a heredoc value to a variable in Bash?
...ed Nov 16 '19 at 22:47
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Aug 8 '13 at 12:58
...
Simple regular expression for a decimal with a precision of 2
...deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
assert len([deci_num_checker.match(x) != None for x in valid]) == len(valid)
assert [deci_num_checker.match(x) == None for ...
How do I convert an enum to a list in C#? [duplicate]
...ke this?!
The static method GetValues was introduced back in the old .NET 1.0 days. It returns a one-dimensional array of runtime type SomeEnum[]. But since it's a non-generic method (generics was not introduced until .NET 2.0), it can't declare its return type (compile-time return type) as such.
...