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main diagonal

the line of values running from the upper left to the lower right of a square matrix. The first value in the main diagonal is the number in the first row and the first column of the matrix, the second value is the number in the second row and second column, and so on.

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Psychology term of the day

January 30th 2025

analeptic

analeptic

n. any stimulant other than amphetamines that produces subjective effects similar to those caused by amphetamine use. These effects may include alertness, elevated mood, increased energy, decreased appetite, irritability, and insomnia. The group includes diethylpropion, methylphenidate, and pemoline. See also appetite suppressant.