E5071C 
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4.  The History List is stored as a text file 
D:\Agilent\Equation\history.txt and can save a maximum of 50 
lines (equations) with a maximum of 254 character per line 
(equation). 
Functions and Constants 
The following table describes the different functions and constant available 
in the E5071C Equation Editor. In the following table: 
•  Function(scalar x) means that the function requires a scalar value. If 
a complex value is entered, it is automatically converted to a scalar 
value; complex(x,y) -> scalar(x) 
•  Function(complex x) means that the function requires a complex 
value. If a scalar value is entered, it is automatically converted to a 
complex value; scalar(x) -> complex(x, 0) 
•  a,b are arguments that are used in the function. 
Basic Math Functions 
Function  Description 
abs(complex a)  returns the sqrt(a.re*a.re+a.im*a.im) 
acos(scalar a)  returns the arc cosine of a in radians 
asin(scalar a)  returns the arc sine of a in radians 
atan(scalar a)  returns the arc tangent of a in radians 
atan2(complex a)  returns the phase of a = (re, im) in radians 
atan2(scalar a, 
scalar b) 
returns the phase of (a, b) in radians 
conj(complex a)  returns the conjugate of a 
cos(complex a)  takes a in radians and returns the cosine