# introduction to polar coordinates template

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in one sense it might seem odd that the first way we are taught to represent the position of objects in mathematics is using cartesian coordinates when this method of location is not the most natural or the most convenient. they are describing (albeit very roughly) a distance “just” and a direction “over there” (supported by a point or a nod of the head). the use of a distance and direction as a means of describing position is therefore far more natural than using two distances on a grid. the polar coordinates of a point describe its position in terms of a distance from a fixed point (the origin) and an angle measured from a fixed direction which, interestingly, is not “north” (or up on a page) but “east” (to the right). let’s try to use this information to give the cartesian coordinates of $p$ we can drop a perpendicular from the point $p$ to $ox$ meeting $ox$ at $q$.

we will take the cartesian coordinates of $p$ as $(x,y)$. now we are trying to find $r$ and $\theta$ in terms of $x$ and $y$. by using the signs of $\sin\theta$ and $\cos\theta$, you can be sure you have the angle in the correct quadrant. the diagram below shows graphs of $r= a\theta$ for different values of $a$, can you work out what they are? what would the series of graphs $r=1, r=2, r=3,$… look like? these graphs are called cardioids by the way.

in the example above the general coordinates for a would be (90,2n\pi + \frac{\pi }{2}), where n is an integer. this also it helps to use a “polar grid” to plot these points: to place the point , go out unit along the horizontal axis (putting you on example : plotting polar coordinates. plot the following polar coordinates: a =p(1,π/4)b=p(1.5 , polar coordinates examples, polar coordinates examples, polar coordinates real life example, introduction to polar coordinates worksheet, polar coordinates grapher.

introduction of polar coordinates polar graph paper: a polar grid with several angles labeled in degrees. angles in practice will make this process more clear. polar coordinates. plot the following polar coordinates: polar coordinates, unlike rectangular coordinates, are based on a circular grid pattern, with position described by angle , polar coordinates pdf, polar coordinates calculator, polar coordinates calculator, polar coordinate transformation, polar coordinates formula

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