CalcuLaTeX

Write an expression followed by '= ?' to evaluate it:

50 g + 1 kg = ? 50 m/s * 5 s = ?

⇒

$50\ \mathrm{\mathrm{g }} + 1\ \mathrm{\mathrm{kg}} = 1.050 \ \mathrm{k g\,}$
$50\ \mathrm{\mathrm{\frac{\mathrm{m}}{\mathrm{s }}}} \times 5\ \mathrm{\mathrm{s }} = 250 \ \mathrm{ m\,}$

Suggest a unit after the question mark. You can use this to convert units:

5 m/s^2 * 3 kg = ? 5 m/s^2 * 3 kg = ? N 5 km = ? m

⇒

$5\ \mathrm{\mathrm{\frac{\mathrm{m}}{\mathrm{\mathrm{s}^{2}}}}} \times 3\ \mathrm{\mathrm{kg}} = 15 \ \mathrm{\frac{k g\, m\,}{ s^{2}\,}}$
$5\ \mathrm{\mathrm{\frac{\mathrm{m}}{\mathrm{\mathrm{s}^{2}}}}} \times 3\ \mathrm{\mathrm{kg}} = 15 \ \mathrm{N}$
$5\ \mathrm{\mathrm{km}} = 5000 \ \mathrm{m}$

Assign variables using an equals sign. They support LaTeX formatting.

a_b = 5 c = 10 kg a_b * c = ? z = a_b kg + c = ?

⇒

$a_b = 5$
$c = 10\ \mathrm{\mathrm{kg}}$
$a_b \times c = 50 \ \mathrm{k g\,}$
$z = a_b\ \mathrm{\mathrm{kg}} + c = 15 \ \mathrm{k g\,}$

Add aliases for hard to type variables

alias dx \frac{dx}{dt} alias dt \Delta{t} dx = 10 m/s dt = 14 days x = dx * dt = ?

⇒

$\frac{dx}{dt} = 10\ \mathrm{\mathrm{\frac{\mathrm{m}}{\mathrm{s}}}}$
$\Delta{t} = 14\ \mathrm{\mathrm{days}}$
$x = \frac{dx}{dt} \times \Delta{t} = 12096 \ \mathrm{k m\,}$

Set the number of output digits or use scientific notation by using !digits or !scientific

1 / 3 = ? !digits 10 1 / 3 = ? !digits 1 !scientific 1 kg = ? mg

⇒

$\frac{1}{3} = 0.333$

$\frac{1}{3} = 0.3333333333$

$1\ \mathrm{\mathrm{kg}} = 1 \times 10^{6} \ \mathrm{mg}$

Basic mathematical functions are supported, and there are a few built-in constants.

sin(\pi) = ? cos(\pi) = ? e = ?

⇒

$\text{sin}(\pi) = 0.000$
$\text{cos}(\pi) = -1$
$e = 2.718$

Escape raw LaTeX with three single quotes

''' Raw LaTeX here ''' 5 * 10 kg = ? ''' Use raw LaTeX to format symbolic equations: $$ e = mc^2 $$ '''

⇒

Raw LaTeX here
$5 \times 10\ \mathrm{\mathrm{kg}} = 50 \ \mathrm{k g\,}$

Use raw LaTeX to format symbolic equations: $e = mc^2$