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Macaulay2Doc :: isTable

isTable -- whether something is a list of lists of equal length

Synopsis

Description

i1 : isTable {{1,2,3},{4,5,6}}

o1 = true
i2 : isTable {{1,2,3},{4,5}}

o2 = false

Caveat

It is intrinsically impossible to represent a 0×k matrix as a list of lists.

See also