This template eases using Dave Keenan and Douglas Blumeyer's variation on Extended bra-ket notation: It puts a left square bracket [ and a right curly bracket } around its arguments and removes surrounding spaces.

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This template eases using Dave Keenan and Douglas Blumeyer's variation on Extended bra-ket notation: It puts a left square bracket [ and a right curly bracket } around its arguments and removes surrounding spaces.

Usage example

You type
{{rket| -19 12 }}
You get
[-19 12}

See also