(finance) A fund that tracks a specific basket of underlying investments.

(economics) The theory that there is at any given time in a country a determinate amount of capital available for the payment of labour, therefore the average wage depends on the proportion of this fund to the number of persons who have to share in it.

(finance) Money lent to government for which interest is paid of a stated amount at a stated time.

(mathematics) In harmonic analysis, any of a complete orthogonal set of functions that can be used to represent any discrete function.

(combinatorics) A Boolean function f: Z ₂ⁿ→ Z ₂ whose Walsh transform has constant absolute value.

(mathematics) A formal power series with one indeterminate, whose coefficients are fractions with factorial denominators (of index corresponding to the power of the indeterminate) and numerators which represent a sequence of numbers that is to be studied.

Synonym of fundamental (“the lowest frequency of a periodic waveform”)

plural of fundamental frequency

(combinatorics) A function from the natural numbers to the set {−1, 0, 1} which maps perfect squares to 0, prime numbers to −1, and is multiplicative.

plural of pooled fund