Tag
Scaling
Entries tagged scaling.
3 entries
Mental model
Dimensional analysis in physics
Every physical quantity carries dimensions built from a small set of base quantities, and any equation claiming to describe nature must have the same dimensions on both sides, which lets you test or repair a formula before ever taking data.
6 min
ConceptFractions as numbers, ratios, and operators
A fraction is a single number, the answer to a division that whole numbers alone cannot finish, and its many everyday faces, a part of a whole, a ratio, a scaling operator, a point on a line, all name that same number.
7 min
ConceptRatios, 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