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.
what is
How Log() Works in PostgreSQL
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.
How the Ln() Function Works in PostgreSQL
In PostgreSQL, ln() is a mathematical function that returns the natural logarithm of its argument.
How the Exp() Function Works in PostgreSQL
In PostgreSQL, exp() is a mathematical function that returns the exponential value of its argument.
How Pi() Works in PostgreSQL
In PostgreSQL, the pi() function returns the number π.
π constant is a mathematical constant. It is defined as the ratio of a circle’s circumference to its diameter.
How the Degrees() Function Works in PostgreSQL
In PostgreSQL, the degrees() function converts from radians to degrees.
The radian is the SI (International System of Units) unit for measuring angles. One radian is just under 57.3 degrees, and a full circle has just over 6.28 radians (2π).
How the Radians() Function Works in PostgreSQL
In PostgreSQL, the radians() function converts from degrees to radians.
The radian is the SI (International System of Units) unit for measuring angles. One radian is just under 57.3 degrees, and a full circle has just over 6.28 radians (2π).
How Trunc() Works in PostgreSQL
In PostgreSQL, the trunc() function truncates a number.
More specifically, it truncates the number either toward zero, or to a specific number of decimal places.
How Ceiling() Works in PostgreSQL
In PostgreSQL, the ceiling() function is used for rounding a number up to the nearest integer.
It’s similar to round(), except that it only rounds up. The round() function will round up or down as required.
It’s also similar to floor(), except that floor() rounds down instead of up.
How Floor() Works in PostgreSQL
In PostgreSQL, the floor() function is used for rounding a number down to the nearest integer.
It’s basically the opposite of ceiling(), which rounds a number up.
It’s also similar to round(), except that it only rounds down. The round() function will round up or down as required.