Wolfram Language
Paclet Repository
Community-contributed installable additions to the Wolfram Language
Primary Navigation
Categories
Cloud & Deployment
Core Language & Structure
Data Manipulation & Analysis
Engineering Data & Computation
External Interfaces & Connections
Financial Data & Computation
Geographic Data & Computation
Geometry
Graphs & Networks
Higher Mathematical Computation
Images
Knowledge Representation & Natural Language
Machine Learning
Notebook Documents & Presentation
Scientific and Medical Data & Computation
Social, Cultural & Linguistic Data
Strings & Text
Symbolic & Numeric Computation
System Operation & Setup
Time-Related Computation
User Interface Construction
Visualization & Graphics
Random Paclet
Alphabetical List
Using Paclets
Create a Paclet
Get Started
Download Definition Notebook
Learn More about
Wolfram Language
DiracMatrix
Guides
DiracMatrix
Symbols
CliffordBasis
CliffordCanonicalBasis
EuclideanGammaMatrices
FlatMetric
GammaMatrices
MetricVielbein
NumericZeroQ
RandomCurvedMetric
ToDiracBasis
ToWeylBasis
WolframQuantumComputation`DiracMatrix`
N
u
m
e
r
i
c
Z
e
r
o
Q
N
u
m
e
r
i
c
Z
e
r
o
Q
[
a
]
r
e
t
u
r
n
s
T
r
u
e
i
f
e
v
e
r
y
e
n
t
r
y
o
f
a
i
s
z
e
r
o
w
i
t
h
i
n
t
o
l
e
r
a
n
c
e
-
8
1
0
a
f
t
e
r
C
h
o
p
.
N
u
m
e
r
i
c
Z
e
r
o
Q
[
a
,
t
o
l
]
u
s
e
s
t
h
e
s
u
p
p
l
i
e
d
t
o
l
e
r
a
n
c
e
t
o
l
.
D
e
t
a
i
l
s
a
n
d
O
p
t
i
o
n
s
Examples
(
6
)
Basic Examples
(
1
)
Zero matrix is reported as True:
I
n
[
1
]
:
=
N
u
m
e
r
i
c
Z
e
r
o
Q
[
{
{
0
.
,
0
.
}
,
{
0
.
,
0
.
}
}
]
O
u
t
[
1
]
=
T
r
u
e
A matrix with entries smaller than the default tolerance is also True:
I
n
[
2
]
:
=
N
u
m
e
r
i
c
Z
e
r
o
Q
[
{
{
1
*
^
-
1
0
,
0
.
}
,
{
0
.
,
1
*
^
-
1
2
}
}
]
O
u
t
[
2
]
=
F
a
l
s
e
A clearly non-zero matrix is False:
I
n
[
3
]
:
=
N
u
m
e
r
i
c
Z
e
r
o
Q
[
{
{
0
.
,
0
.
5
}
,
{
0
.
,
0
.
}
}
]
O
u
t
[
3
]
=
F
a
l
s
e
S
c
o
p
e
(
2
)
A
p
p
l
i
c
a
t
i
o
n
s
(
1
)
P
o
s
s
i
b
l
e
I
s
s
u
e
s
(
1
)
N
e
a
t
E
x
a
m
p
l
e
s
(
1
)
R
e
l
a
t
e
d
G
u
i
d
e
s
▪
D
i
r
a
c
M
a
t
r
i
x
"
"