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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Maths Q

Let's take a function: f(x)=-x²

Here, when we substitute numbers for x, we assume: f(x)=-(x²) or f(2)=-(2²)=-4

Or at least in everything I have come across so far.
 

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