Selecting a Function

The value of a quantity being plotted depends upon its mathematical function, which you select from the Function list in the Report dialog box. The available, valid functions depend on the type of quantity (real or complex) being plotted. The function is applied to the quantity which is implicitly defined by all the swept and current variables.

Some of these functions can operate along an entire curve. These are min, max, integ, rms, pk2pk, cang_deg and cang_rad.

You can select from the following functions in the Trace tab Function list:

abs	Absolute value.
acos	Arc cosine.
acosh	Hyperbolic arc cosine.
ang_deg	Angle (phase) of a complex number, cut at +/-180.
ang_deg_val	Angle (phase of a complex number in unitless degree values). Returns simple numbers.
ang_rad	Angle in radians.
arg	Argument of a complex number. It is the angle the complex number makes with the positive X-axis. Same as ang_deg.
asin	Arc sine.
asinh	Hyperbolic arc sine.
atan	Arc tangent.
atanh	Hyperbolic arc tangent.
cos	Cosine.
cosh	Hyperbolic cosine.
cum_integ	The cumulative integral function returns a set of values that have the same length as the original set of points (the first element will always be zero). Element I of the set returned by cum_integ is the integral of elements 1 through I of the original data set.
cum_sum	The cumulative sum function returns a data set that has the same length as the original set of points. Element I of the set returned by cum_sum is the sum of elements 1 through I of the original data set.
dB(x)	20*log10(\|x\|).
dBc	Decibels relative to the carrier. It is the power ratio of the signal to a carrier signal. Gives the relative signal strength.
degel	Degrees electrical. degel(x, y) = x / 2piy.
deriv	Derivative of a given parameter.
even	Returns 1 if integer part of the number is even; returns 0 otherwise.
exp	Exponential function (the natural anti-logarithm).
int	Truncated integer function.
ln	Natural logarithm.
log10	Logarithm base 10.
mag	Magnitude of the complex number.
nint	Nearest integer.
normalize	Divides each value within a trace by the maximum value of the trace. ex. normalize(mag(x)).
odd	Returns 1 if integer part of the number is odd; returns 0 otherwise.
rem	Fractional part.
sgn	Sign extraction.
sin	Sine.
sinh	Hyperbolic sine.
sqr	Square of the argument.
sqrt	Square root.
tan	Tangent.
tanh	Hyperbolic tangent.

Additionally, the following functions are not in the Function list, but are supported and can be entered manually.

db10normalize(x)	10*log [normalize(mag(x))].
db20normalize(x)	20*log [normalize(mag(x))].
j0	Bessel function of the first kind (0th order).
j1	Bessel function of the first kind (1st order).
y0	Bessel function of the second kind (0th order).
y1	Bessel function of the second kind (1st order).