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Ztotal

Ztotal, also written Z_total, is a term used in several disciplines to denote an aggregate or total value associated with a variable Z. Because it is not tied to a single universal constant or definition, its meaning is highly domain-specific and must be interpreted in context.

In electrical engineering, Z_total commonly refers to the total impedance of an electrical network. It is obtained

In chemistry and physics, Z_total can denote the sum of atomic numbers (the total nuclear charge) of

In statistics and data analysis, Z_total may refer to the aggregate of standardized values (Z-scores) across

In software and data processing, Z_total is a common variable name for an accumulator that stores the

See also: impedance, atomic number, Z-score, total.

by
combining
component
impedances:
in
series,
Z_total
=
Z1
+
Z2
+
...;
in
parallel,
1/Z_total
=
1/Z1
+
1/Z2
+
....
Impedance
Z
can
be
complex
(Z
=
R
+
iX),
reflecting
both
resistance
and
reactance,
with
magnitude
|Z|
=
sqrt(R^2
+
X^2).
the
atoms
in
a
molecule,
or,
less
formally,
the
total
charge
contribution
within
a
system.
The
exact
definition
varies
by
subfield,
and
Z_total
is
not
a
universal
chemical
constant.
observations,
such
as
Z_total
=
sum_i
Z_i,
or
to
a
cumulative
latent
variable
labeled
Z
in
a
model.
The
precise
formula
depends
on
the
model
and
data
preprocessing
choices.
running
total
of
a
quantity
associated
with
Z,
such
as
a
dimension,
channel,
or
parameter
in
a
dataset
or
simulation.