Database Management Systems
In PostgreSQL, sind() is a mathematical function that returns the trigonometric sine of the specified angle, as measured in degrees.
You specify the angle by providing an argument to the function when calling it.
In trigonometry, sine is the function that is equal to the ratio of the side opposite a given angle (in a right-angled triangle) to the hypotenuse.
In PostgreSQL, cos() is a mathematical function that returns the trigonometric cosine of the specified angle, as measured in radians.
You specify the angle by providing an argument to the function when calling it.
In PostgreSQL, cosd() is a mathematical function that returns the trigonometric cosine of the specified angle, as measured in degrees.
You specify the angle by providing an argument to the function when calling it.
In PostgreSQL, acos() is a mathematical function that returns the inverse cosine of the specified expression, measured in radians.
The inverse cosine is also known as the arccosine.
In PostgreSQL, acosd() is a mathematical function that returns the inverse cosine of the specified expression, measured in degrees.
The inverse cosine is also known as the arccosine.
In PostgreSQL, log() is a mathematical function that returns the base 10 logarithm of its argument.
However, it also allows you to optionally specify a base with which to use.
In PostgreSQL, ln() is a mathematical function that returns the natural logarithm of its argument.
In PostgreSQL, exp() is a mathematical function that returns the exponential value of its argument.
In PostgreSQL, you can use the to_char() function to output numbers in a given format. This includes appending the number with the ordinal indicator.
For example 1, 2, 3 becomes 1st, 2nd, 3rd.