2012

WARNING With imperial units, CAL interprets a minus or a dash (-) as a unit
separator rather than a subtraction operation. To specify subtraction, include at
least one space before or after the minus sign. For example, to subtract 9” from
5', enter 5' -9” rather than 5'-9”.
See also:
Use the Command Line Calculator
Format Angles
The default units for angles are decimal degrees. Enter angles using the
following format:
<degrees>d<minutes>'<seconds>”
You must enter 0d when entering an angle that is less than 1 degree (minutes
and seconds only). You can omit the minutes or seconds if they are zero.
Enter a number followed by r to enter angles in radians. Enter a number
followed by g to enter angles in grads.
The following examples show ways of entering angles:
5d10'20"
0d10'20"
124.6r
14g
Angles entered in any format are converted to decimal degrees.
Pi radians is equal to 180 degrees, and 100 grads is equal to 90 degrees.
See also:
Use the Command Line Calculator
Use Points and Vectors
Both points and vectors are pairs or triples of real numbers. A point defines a
location in space, but a vector defines a direction (or translation) in space.
164 | Chapter 2 Commands