Malvern Instruments Zetasizer 1000, Basic Reference Manual

Page: 43 / 123

4.1 Abort Command
Application
Aborts measurement sequence.
Syntax
Abort
4.2 ABS() Function
Application
Return the absolute (constrained positive) value of the argument.
Syntax
Abs(x)
Notes
This function returns the absolute value of a number.
Example
b=-123
a=abs(b)
print dialogue using “####”, a ‘prints 123 in a dialogue box.
4.3 Achannel Function
Application
Data information for Size and Zeta records.
Syntax
AChannel
Notes
AChannel monitor counts of current selected record. ie. the total number of photon detections
processed by the correlator.
4.4 ACOS Function
Application
Mathematical Function
Syntax
acos (number)
Notes
This function returns the angle, in radians, of which the cosine equals the number. The value
returned is in the range 0.0 to 2Pi.
The value of number must be in the range -1.0 to 1.0.
Examples
acos( 0) ‘returns 1.57
Zetasizer Basic reference MAN 0179
Page 4.5
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