Tag
Ratio
Entries tagged ratio.
2 entries
Concept
Ratios, proportions, and similarity
A ratio is a relationship between two quantities, of the form how many times one contains the other, that can stay exactly fixed while the quantities themselves grow or shrink together.
6 min
ConceptUnits and dimensional reasoning
A measured number is incomplete without its unit, because the unit names the standard the number is a multiple of, and mismatched units make an equation meaningless regardless of whether the digits agree.
6 min