COSH

Description

The cosh function is used to calculate the hyperbolic cosine value of a given numerical expression. The hyperbolic cosine function is a type of hyperbolic function, similar to the cosine function, but it is used to describe the geometry of hyperbolas.

Syntax

cosh(expr)

Parameter Description

• expr: The numerical expression for which the hyperbolic cosine needs to be calculated, of type double.

Return Result

Returns the calculated hyperbolic cosine value, of type double.

Usage Example

1. Calculate the hyperbolic cosine value of 0:

   SELECT cosh(0);
   -> 1.0
   

2. Calculate the hyperbolic cosine of the value -1:

   SELECT cosh(-1);
   -> 1.5430806348152437
   

3. Calculate the hyperbolic cosine of the number 2:

   SELECT cosh(2);
   -> 3.7621956910836314
   

4. Calculate the hyperbolic cosine of each element in a column, for example column_name:

   SELECT cosh(column_name) FROM table_name;
   

This will return a new column containing the hyperbolic cosine of each element in the column_name column of the table_name table.

Notes

• For very large values, the result of the hyperbolic cosine function may exceed the numerical range, causing an overflow. In such cases, ensure to appropriately limit the range of input values.

By using the cosh function, you can easily calculate the hyperbolic cosine in database queries, thereby applying hyperbolic geometric concepts in data analysis and processing.