Find the units in an array of equations or expressions by using findUnits. The findUnits function concatenates all units found in the input to return a row vector of units. findUnits returns only base units.
u = symunit;
array = [2*u.m + 3*u.K, 1*u.N == 1*u.kg/(u.m*u.s^2)];
units = findUnits(array)
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