HEIDENHAIN POSITIP 880 User Manual page 93

Math functions (+, –, x, /)
Math functions may be performed separately in the stand-alone
calculator or directly in the field you're working in. For example, let's
say we need to enter the radius of a circle pocket, but your print only
shows the diameter, 6.25. Here's an easy way to figure out the radius:
Highlight the RADIUS field for the circle pattern.
Using the keypad, enter the value for the diameter, 6.25.
Press INFO.
Press CALCULATOR.
Press the TRIG soft key.
Press the / soft key.
Press the 2 key.
Press the ENT key. The answer, 3.125, will appear in the VALUE
field.
Press USE. Value will be shown in the RADIUS field.
When you need to enter more than one calculation into a
numeric field, the calculator will perform multiplication and
division before it performs addition and subtraction. If you
were to enter 3 + 1 / 8, POSITIP 880 will divide one by
eight, then add three for an answer of 3.125.
Trig functions
As we showed above, when you're entering data for a milling or
positioning function, your print may not provide you with all of the
information you need. If an unknown value can be expressed as a
trigonometry function, square root or the square of a number,
POSITIP 880 can calculate the dimension for you in the trigonometry
calculator. See Fig. I.69 & Fig. I.70.
Using the trig calculator:
While in a numeric field (such as the "TO" field for a line), press the
INFO soft key, the CALCULATOR soft key, and then press the
STANDARD/TRIG soft key. Press the MORE soft key and the soft key
row in the picture to the right will appear:
Press the MORE soft key to toggle between the three soft key rows.
Enter a number and then press the soft key for the appropriate
trigonometry math function.
For example, to enter a radius that has a value equal to the square root
of 2, follow this procedure:
Highlight the RADIUS field.
Press the 2 key.
Press INFO.
Press CALCULATOR.
Press the TRIG soft key.
Press the SQR ROOT soft key. A value of 1.4142 will appear.
POSITIP 880
Fig. I.69 2nd row of calculator soft keys
Fig. I.70 Trig function soft keys
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