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prime:polrec [2017/12/15 03:25]
webmasterpdx
prime:polrec [2017/12/15 03:40] (current)
webmasterpdx
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 Polar coordinates are entered using R∠Angle, where ∠ is Shift-x (multiply). Polar coordinates are entered using R∠Angle, where ∠ is Shift-x (multiply).
 Rectangular coordinates are entered using complex values as in a+b*i (where i is Shift-2). Also useful is the π symbol (shift-3). Rectangular coordinates are entered using complex values as in a+b*i (where i is Shift-2). Also useful is the π symbol (shift-3).
 +
 +You can convert angles between radians and degrees by using the Shift-Units menus. From the tools menu, the CONVERT function does the conversion. Then you can select (rad) or (deg) from the Units-Angle menu. So, use CONVERT(1.5_(rad),​1_(deg)) to convert 1.5 radians to degrees. You do have to enter the 1 in 1_(deg). Note that other angle formats are also available in Units-Angle.
  
 In the geometry app you can enter a point in either form using the point() function. In the geometry app you can enter a point in either form using the point() function.
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 To enter a point this way in the geometry app, you cannot enter point(1∠30_deg),​ but you can enter 1∠30 on the home view and hit enter to convert to radians. Then, in the geometry app, you can enter point() and select menu-copy_from_home and select the radian version to put it in the point call. You can alternatively enter point(EXPR("​1∠30_deg"​)). To enter a point this way in the geometry app, you cannot enter point(1∠30_deg),​ but you can enter 1∠30 on the home view and hit enter to convert to radians. Then, in the geometry app, you can enter point() and select menu-copy_from_home and select the radian version to put it in the point call. You can alternatively enter point(EXPR("​1∠30_deg"​)).
  
-The following function is a useful one to have in your arsenal. It will convert from polar to rectangular and vice versa...automatically.+The following function is a useful one to have in your arsenal. It will convert from polar to rectangular and vice versa...automatically. It must be run from Home mode.
  
  
prime/polrec.1513337115.txt.gz · Last modified: 2017/12/15 03:25 by webmasterpdx