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Functions allow you to perform a specific set of calculations in a cell, column or row. The PRODUCT () function performs only one type of calculation, so you may need to use the multiplication ...
HENERI A. M. DZINOTYIWEYI, WEAKLY ALMOST PERIODIC FUNCTIONS AND THE IRREGULARITY OF MULTIPLICATION IN SEMIGROUP ALGEBRAS, Mathematica Scandinavica, Vol. 46, No. 1 (1980), pp. 157-172 ...
M.R. DOSTANIĆ, SPECTRAL ESTIMATES FOR THE COMMUTATOR OF TWO-DIMENSIONAL HILBERT TRANSFORMATION AND THE OPERATOR OF MULTIPLICATION WITH A C¹ FUNCTION, The Rocky Mountain Journal of Mathematics, Vol. 34 ...