How do u find direction if gradient is given. For example gradient is <12,20,30> and i need to find which direction Its going. do i find the unit vector or smthn? can someone explain please.

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- Mar 18th 2013, 08:34 AMmunkhuuhow to find direction if the gradient vector is given
How do u find direction if gradient is given. For example gradient is <12,20,30> and i need to find which direction Its going. do i find the unit vector or smthn? can someone explain please.

- Mar 18th 2013, 11:06 AMxxp9Re: how to find direction if the gradient vector is given
OK I think I understood your question:

Given a vector v, how to find the unit vector at the same direction?

It is v/|v| - Mar 18th 2013, 12:40 PMmunkhuuRe: how to find direction if the gradient vector is given
the question says that shark finds preys through smell and electrical impulse. and f(x,y,z) indicates the electrical pulse in the water at position (x,y,z) and shark senes gradient f <12,-20,5>, in which direction should the shark swim to find its prey.