Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
German
⇄
Chinese
Danish
Dutch
English
Finnish
French
Japanese
Polish
Portuguese
Russian
Serbian
Spanish
Swedish
+
G
o
o
g
l
e
|
Forvo
|
+
Nullmatrix
f
This HTML5 player is not supported by your browser
econ.
null matrix
;
vacuous matrix
math.
zero matrix
tech.
nullmatrix
Add
|
Report an error
|
Get short URL
