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.
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:
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: