Entering a Formula String

Proceed as follows to enter the formula string:

Select the menu options Goto Formula or the relevant function key on the screen Basic Data.
You reach the screen Formula.
Enter the formula.
Three lines are available for the entry. The operators and functions you can use for the calculation are listed in the following table.
Press ENTER .

The system lists the characteristics you specified in the formula with the units of measurement, if necessary.

Possible Operators, Functions and Operands in Formulas

Operator	Meaning	Example
+	Add	A + B
-	Subtract	A - B
*	Multiply	A * B
/	Divide	A/B
**	Raise to the power of	A**B
=	Equals
><, <>	Is not equal to
<	Is less than
>	Is greater than
<=, =<	Is less than or equal to
>0, =>	Is greater than or equal to
AND	Logical AND
OR	Logical OR
NOT	Logical negation

Function	Meaning	Example
ABS	Absolute amount	ABS(3-5 ) 2
SIN	Sine	SIN(A)
COS	Cosine	COS(A)
TAN	Tangent	TAN(A)
LOG	Natural logarithm.	LOG(A)
EXP	Power to base e	EXP(A)
SQRT	Square root	SQRT(A)
ROUND	Round up	ROUND(3.5 ) 4
INT	Round down	INT(3.5 ) 3
TRUNC	Without places behind the decimal point	TRUNC(3.5 ) 3
MOD	Modulo, remainder after division	7 MOD 3 1
DIV	Integer division	A DIV B

Operand	Meaning
TRUE	Logically true
FALSE	Logically false

Entering a Characteristic Origin

You can enter the origin of individual characteristics both in formula maintenance on the screen Formula and in method maintenance on the screen Maintain Charact. Structure . However, entering the characteristic origin in the method has the advantage that you can maintain the corresponding rule at the same time.

You maintain the origin of individual characteristics in formula maintenance in exactly the same way as in method maintenance. Place the cursor on the characteristic line, for which you want to maintain the origin and proceed as described in Maintaining Characteristic Origins .