Сan not identify block

I can't identify the block, please help:

What is the block and how to fill it?

Answer 1

[Sam Chak]

Hello @Anton

It is possible to create the block using "block mask" techniques. However, I think the authors probably (and simply) used the Fcn block. However, the block has become obsolete since R2020b, if I remember correct.

https://www.mathworks.com/help/simulink/ref_obsolete_blocks/fcn.html

Nevertheless, the expression can be easily constructed using basic blocks like the Trigonometric Function block and the Gain block.

By the way, why is the Gravity (physics) described like a sine wave? Sometimes, do not 100% trust the works or results in some Journal papers. Trust your guts instead.

Answer 2

[Paul]

Right click on the block and then click on Help, which will take you the doc page for the block.

[Anton]

I only have a picture of the block and I need to build a diagram based on it