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The phrase "unit matrix" is correct and usable in written English.
It is usually used to refer to a matrix in which all the diagonal elements are 1 and all other elements are 0. For example, the following is a 3x3 unit matrix: [1, 0, 0] [0, 1, 0] [0, 0, 1].
Dictionary
unit matrix
noun
An identity matrix.
synonyms
Exact(60)
for example, the unit matrix is defined in the following way.
However, the correlation matrix may be required to be as close to the unit matrix as possible (optimal).
All the spectra were normalized by the sample transmission response at B=0 T. in which σi are the Pauli matrices and I is a 2 × 2 unit matrix.
This solution corresponds to a zero initial matrix displacement and a unit matrix impulse when in standard form.
is the unit matrix.
is a unit matrix.
I is the unit matrix.
where is the unit matrix in.
Let where is the th unit matrix.
The unit matrix is denoted I.
where is an infinite unit matrix.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com