Hi all,

I want to design a verilog code for a mathematical function -

d = square root (a^2 + b^2);

can any body suggest me an easy solution for this?
thankyou

Well, strictly spoken, you can't do that at all. If a = b = 1, the mathematical function would yield sqrt(2), which is not a rational number and therefore not exactly representable with any finite number of bits. So in fact you are asking for an approximation to the mathematical function.

To give a sensible answer to your question, you have to specify your precision requirements or, better yet, the representation format of your numbers (a, b, d). Are you speaking of floating point, fixed point, or whole numbers? What range is required? And last but not least, how much time does your hardware have to compute the answer? Is it appropriate to construct a sequential circuit, or do you need something in the direction of a lookup table? Your question is way too general to be meaningful.

Hellwig