About extracting the response surface data

I use polynomial degree 4 to generate the response surface. How can I get the data corresponding to the created response surface given random values? For example, how do I know the response value for V=10,P=6,S=4. Looking forward to your answer. Here’s my file.
1.zip (2.5 KB)

You can use the emulator node to sample the response surface with given values. Just have to be careful with the shape of the points you feed it. Needs to be (number of samples, number of dimensions). So for your case, I assume you are going to evaluate lots of samples, I would just use a code node to build they array.

Here is the documentation: