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How can I get sin, cos, and tan to use degrees instead of radians?
...ultiply the input by Math.PI/180 to convert from degrees to radians before calling the system trig functions.
You could also define your own functions:
function sinDegrees(angleDegrees) {
return Math.sin(angleDegrees*Math.PI/180);
};
and so on.
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How to annotate MYSQL autoincrement field with JPA annotations
...
To use a MySQL AUTO_INCREMENT column, you are supposed to use an IDENTITY strategy:
@Id @GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;
Which is what you'd get when using AUTO with MySQL:
@Id @GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
Which is a...
How to get multiple counts with one SQL query?
...ally the same thing as a PIVOT function in some RDBMS:
SELECT distributor_id,
count(*) AS total,
sum(case when level = 'exec' then 1 else 0 end) AS ExecCount,
sum(case when level = 'personal' then 1 else 0 end) AS PersonalCount
FROM yourtable
GROUP BY distributor_id
...
Rails: Default sort order for a rails model?
... rails 4 there are deprecation warning when using #scope without passing a callable object. For example scope :red, where(color: 'red') should be changed to scope :red, -> { where(color: 'red') }.
As a side note, when used incorrectly, default_scope can be misused/abused.
This is mainly about wh...
Explicitly set Id with Doctrine when using “AUTO” strategy
My entity uses this annotation for it's ID:
7 Answers
7
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Smooth scroll to div id jQuery
I've been trying to get a scroll to div id jquery code to work correctly. Based on another stack overflow question i tried the following
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Optimal way to concatenate/aggregate strings
...ich should work fine in Azure.
;WITH Partitioned AS
(
SELECT
ID,
Name,
ROW_NUMBER() OVER (PARTITION BY ID ORDER BY Name) AS NameNumber,
COUNT(*) OVER (PARTITION BY ID) AS NameCount
FROM dbo.SourceTable
),
Concatenated AS
(
SELECT
ID,
CA...
What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?
...ving them from a dependency injection (DI) container. This happens automatically when the container is asked to provide (resolve) an instance of the View class. The container injects the ViewModel into the View by calling a constructor of the View which accepts a ViewModel parameter; this scheme is ...
Is a statically-typed full Lisp variant possible?
Is a statically-typed full Lisp variant possible? Does it even make sense for something like this to exist? I believe one of a Lisp language's virtues is the simplicity of its definition. Would static typing compromise this core principle?
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Python - abs vs fabs
...---------
TypeError Traceback (most recent call last)
/home/npe/<ipython-input-12-8368761369da> in <module>()
----> 1 type(math.fabs(3+4j))
TypeError: can't convert complex to float
...