You can use absolute or relative polar coordinates (distance and angle) to locate points when creating objects.
To use polar coordinates to specify a point, enter a distance and an angle separated by an angle bracket (<).
By default, angles increase in the counterclockwise direction and decrease in the clockwise direction. To specify a clockwise direction, enter a negative value for the angle. For example, entering 1<315 locates the same point as entering 1<-45. You can change the angle conventions for the current drawing with the UNITS command.
Absolute polar coordinates are measured from the UCS origin (0,0), which is the intersection of the X and Y axes. Use absolute polar coordinates when you know the precise distance and angle coordinates of the point.
With dynamic input, you can specify absolute coordinates with the # prefix. If you enter coordinates on the command line instead of in the tooltip, the # prefix is not used. For example, entering #3<45 specifies a point 3 units from the origin at an angle of 45 degrees from the X axis.
The following example shows two lines drawn with absolute polar coordinates using the default angle direction setting. Enter the following in the tooltip:
Command: line
From point: #0,0
To point: #4<120
To point: #5<30
Relative coordinates are based on the last point entered. Use relative coordinates when you know the location of a point in relation to the previous point.
To specify relative coordinates, precede the coordinate values with an @ sign. For example, entering @1<45 specifies a point at a distance of 1 unit from the last point specified at an angle of 45 degrees from the X axis.
The following example shows two lines drawn with relative polar coordinates. In each illustration, the line begins at the location labeled as the previous point.
Command: line
From point: @3<45
To point: @5<285