Theodor Friedrichs COMBILOG 1020, Hardware Manual

Page: 63 / 170

Hardware Manual COMBILOG 1020
63
The times given in the above table are based on an operating fre-
quency of 20 MHz. The 5 MHz version requires time values 4
times higher.
Remarks:
‰ Division (/)
When dividing by zero, the positive full scale (+10
37
) will be
assigned to the Arithmetic Channel if the numerator is positive
and the negative full scale (-10
37
) will be assigned if the nu-
merator is negative.
‰ Square root ( sqrt )
The square root of a negative number is zero.
‰ Logarith to Base e ( In )
For avalue
≤
0 the negative full scale will be assigned to the
Arithmetic Channel.
‰ Logarithm to Base10 ( log )
For a value
≤
0 the negative full scale will be assigned to the
Arithmetic Channel.
‰ Arc functions ( sin , cos , tan )
The arc values must be taken in radians (2
π
= 360°). If calcu-
lating the tangens, the positve full scale will be assigned to
the Arithmetic Channel for the arc value
2
π
and the negative
full scale for the arc value -
2
π
.
‰ Inverse functions for sin ( arcsin ), cos ( arccos ), tan ( arctan )
The results of the inverse functions are given in radians
(2
π
= 360°). At the function arcsin the value +
2
π
will be as-
signed to the Arithmetic Channel for a value
>
1 and the value
–
2
π
will be assigned for a value
<
-1. At the function arccos
the value 0 will be assigned to the Arithmetic Channel for a
value
>
1 and the value will be assigned for a value
<
-1.