Calculations within node-red

@knolleary wrote:

Hi @vinisz

The Function node is probably the easiest place to start with this sort of thing.

The node uses JavaScript and there is a good guide on the built-in Math object here.

And more specifically, the Math.pow() function.

With that in mind, a Function node with the following code should do what you want.

msg.payload = Math.pow(10, (msg.payload-109)/32);
return msg;

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