sandbox-maxima-worked-example-2

Converting inches to kilometers.First load the ‘ezunits’ package.

load (ezunits) $

foo : 1 ` inch;

$$1\mathrm{inch}$$

Units are converted by the double backtick operator; conversions are not carried out automatically.

bar : foo `` km;

$$\frac{127}{5000000}\mathrm{km}$$

As usual, Maxima prefers exact numbers to inexact.We can get a float approximation if we wish.

float (bar);

$$2.54\times {10}^{-5}\mathrm{km}$$

A volume conversion.Here ‘baz’ is the volume of one inch of water spread over one acre, while ‘quux’ is the same volume expressed in SI units.

baz : 1 ` (inch * acre);

$$1\mathrm{inch}\mathrm{acre}$$

quux : baz `` m^3;

$$\frac{20076201783}{195312500}{\mathrm{m}}^3$$

float (%);

$$102.79015312896{\mathrm{m}}^3$$