identity matrix

For example, the identity element in the group must be assigned the identity matrix.
The ‘Useless’ Perspective That Transformed Mathematics|Kevin Hartnett|June 9, 2020|Quanta Magazine
But he, like many people using dating apps whatever their sexual identity, remains stoutly positive.
Grindr’s Trans Dating Problem|David Levesley|January 9, 2015|DAILY BEAST
They are not the actual traffickers, Yazbek says, so generally the other refugees protect their identity.
Ghost Ships of the Mediterranean|Barbie Latza Nadeau|January 6, 2015|DAILY BEAST
But those strands of his identity are all wound around the conspiracy that led him back to Gambia for the first time in 23 years.
The Shadowy U.S. Veteran Who Tried to Overthrow a Country|Jacob Siegel|January 6, 2015|DAILY BEAST

Identity issues seem to have dogged Otis since his troubles began.
His First Day Out Of Jail After 40 Years: Adjusting To Life Outside|Justin Rohrlich|January 3, 2015|DAILY BEAST
In a remote location with little means for economic development, the Brogpas have cultivating this identity to their advantage.
The Himalayas’ Hidden Aryans|Nina Strochlic|January 3, 2015|DAILY BEAST
Now the Waterford and Limerick were to lose, not only the Ennis line, but all their lines and their own identity as well.
Fifty Years of Railway Life in England, Scotland and Ireland|Joseph Tatlow
There is a perfect identity of principle, both working to the same good end, between the existing corn-law and the new tariff.
Blackwood's Edinburgh Magazine, No. CCCXXXIX. January, 1844. Vol. LV.|Various
But in all probability, the messenger knew less about the identity of the Eye than Black Hood knew.
Hooded Detective, Volume III No. 2, January, 1942|Various
Some are constantly being added, others are removed from her communion on earth, but her characteristic absolute identity remains.
The Ordinance of Covenanting|John Cunningham
At least he understood how Jack Carlson had died, even if the mystery of the identity of the Eye had deepened.
Hooded Detective, Volume III No. 2, January, 1942|Various