Addition of Graph Embedding and Mathematical Functionalities to the Functions(Maths)

[animeshsrivastava24]

It will be great if we can add Graph Embedding and Mathematical Functionalities to the functions under the topic Maths and Trigo
https://www.arduino.cc/reference/en/language/functions/math/abs/.

Please find a modified example here: https://github.com/animeshsrivastava24/reference-en/blob/master/AsciiDoc_sample/Reference_Terms/Math_abs.adoc