HEIDENHAIN TNC 426 (280 476) - Manual (Page 389)

362 10 Programming: Q Parameters
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.4 T
rig
onometr
ic F
unctions
Programming trigonometric functions
Press the TRIGONOMETRY soft key to call the trigonometric
functions. The TNC then displays the soft keys that are listed in the
table below.
Programming: Compare “Example: Programming fundamental
operations.”
Function Soft key
FN6: SINE
Example: FN6: Q20 = SIN–Q5
Calculate the sine of an angle in degrees (°) and
assign it to a parameter.
FN7: COSINE
Example: FN7: Q21 = COS–Q5
Calculate the cosine of an angle in degrees (°) and
assign it to a parameter.
FN8: ROOT SUM OF SQUARES
Example: FN8: Q10 = +5 LEN +4
Calculate and assign length from two values.
FN13: ANGLE
Example: FN13: Q20 = +25 ANG–Q1
Calculate the angle from the arc tangent of two sides
or from the sine and cosine of the angle (0 < angle <
360°) and assign it to a parameter.