Overview

Built-in functions are functions that are predefined and ready-to-use functions. These functions are also known as Intrinsic Functions. We don’t need to write code for these functions. The built-in functions are invoked directly in the flowcharts.

Examples

Some examples of the intrinsic functions are:

Mathematical Functions like:

Log(x) – computes the natural logarithmic of x.

Sqrt(x) – computes the square root of the input parameter x.

Abs(x) – absolute value of the input parameter x.

Trigonometric Functions like:

Cos(x) – computes the cosine of x.

Sin(x) – computes the sine of x.

Tan(x) – computes the tangent of x.

String Functions like:

Len(str) – returns the length of the string.

Char(str, index) – returns the characters of the string at index.

Data type conversion functions like:

ToInteger(n)

ToString(n)

Example

Let’s use an intrinsic function sin(x) in the flowchart to get a better understanding. Sin(x) computes the trigonometric sine of the input argument x. x should be in radians. sin(x) is a built-in function. We don’t need to define the function in the flowchart.

 

More Information on intrinsic function in Flowgorithm tool is at:

http://www.flowgorithm.org/documentation/intrinsic-functions.htm