caretesian coordinates: (-3,4)

polar coordinates: (5 , pi + arctan ( - 4/3))

Could somebody explain to me step by step how the angle, pi + arctan ( - 4/3), was determined from the cartesian coordinates?

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- Feb 24th 2008, 07:39 AMbillymanother polar expression proplem
caretesian coordinates: (-3,4)

polar coordinates: (5 , pi + arctan ( - 4/3))

Could somebody explain to me step by step how the angle, pi + arctan ( - 4/3), was determined from the cartesian coordinates? - Feb 24th 2008, 07:42 AMgalactus
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- Feb 24th 2008, 08:38 AMbillym

There. So... how do we find the angle? - Feb 24th 2008, 08:53 AMPeritus
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Polar coordinate system - Wikipedia, the free encyclopedia