Table of Contents
Advertisement
Mathematical function
Arc sine
Inverse of the sine. Determine the angle
from the ratio of the opposite side to the hypotenuse.
Example: Q10 = ASIN 0.75
Arc cosine
Inverse of the cosine. Determine the angle
from the ratio of the adjacent side to the hypotenuse.
Example: Q11 = ACOS Q40
Arc tangent
Inverse of the tangent. Determine the angle
from the ratio of the opposite to the adjacent side.
Example: Q12 = ATAN Q50
Powers
Example: Q15 = 3^3
Constant "pi" (3.14159)
e.g. Q15 = PI
Natural logarithm (LN) of a number
Base 2.7183
Example: Q15 = LN Q11
Logarithm of a number, base 10
Example: Q33 = LOG Q22
Exponential function, 2.7183
Example: Q1 = EXP Q12
Negate (multiplication by -1)
Example: Q2 = NEG Q1
Drop places after the decimal point
(form an integer)
Example: Q3 = INT Q42
Absolute value
Example: Q4 = ABS Q22
Drop places before the decimal point
(form a fraction)
Example: Q5 = FRAC Q23
HEIDENHAIN TNC 426 B, TNC 430
www.EngineeringBooksPdf.com
Soft key
n
Rules for formulas
Mathematical formulas are programmed according
to the following rules:
Higher-level operations are performed first
(multiplication and division before addition and
subtraction)
2 Q
= 5 * 3 + 2 *
0 = 35
Calculation step 5 ∗ 3 = 15
1st step:
Calculation step 2 ∗ 10 = 20
2nd step:
3rd step:
15 + 20 = 35
3 Q2 = SQ
0 – 3^3 = 73
1st step:
10
= 100
2
2nd step:
3
= 27
3
3rd step:
100 – 27 = 73
Distributive law
for calculating with parentheses
a * (b + c) = a * b + a * c
271
Advertisement
Table of Contents
