Agilent Technologies B1500A Guide de l'utilisateur Page 466

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8- 16 Agilent B1500 User’s Guide, Edition 7
Built-in Programming Tool
Read Out Functions
@CYn Returns the value of the Yn coordinate at the active cursor position (n: 1 to 8,
integer).
Functions for Line
@LmCO Returns the correlation coefficient of the regression for Line m (m: 1 or 2).
Line m must be in regression mode. If not, this function returns invalid data.
@LmG Returns
the slope of Line m (m: 1 or 2).
If there are two Y ax
es, this function returns the value for the s
elected axis.
This function calculates the slope by using the following formula:
If the X and Y axes are both linear scale:
α = (y
1
-y
0
) / (x
1
-x
0
)
If the X axis is log scale, and the Y axis is linear scale:
α = (y
1
-y
0
) / (log x
1
- log x
0
)
If the X axis is linear scale, and the Y axis is log s
cale:
α = (log y
1
-log y
0
) / (x
1
-x
0
)
If the X and Y axes are both log scale:
α = (log y
1
-log y
0
) / (log x
1
- log x
0
)
where,
α : Slope of Line m
x
0
, y
0
, x
1
, y
1
: X and Y coordinate values at the two points where Line m
intercepts the perimeter of the plotting area.
@LmGn Returns the slope of Line m (m:
1 or 2) for t
he Yn axis (n: 1 to 8, integer).
This function calculates the slope by using the following formula:
If the X and Yn axes are both linear s
cale:
α = (y
1
-y
0
) / (x
1
-x
0
)
If the X axis is log scale, and the Yn axis is linear scale:
α = (y
1
-y
0
) / (log x
1
- log x
0
)
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