Changelog (compared with grimalschi's calque)

Matrix

Symmetrization and antisymmetrization:

matrix = [[1,2],[3,4]]
sym(matrix) // = [[1, 2.5], [2.5, 4]]
alt(matrix) // = [[0, -0.5], [0.5, 0]]

sym(matrix) + alt(matrix) == matrix // = true

Diagonal matrices:

diagonal([1,2]) // = [[1,0], [0,2]]

Column:

a = [[1,2,3],[4,5,6]]
col(a, 1) // = [1, 4]
col(a, 1, [0,0]) // = [[0, 2, 3], [0, 5, 6]]

Fractions

Square root:

a = fraction(1, 3) // = 0.(3)
sqrt(a) // = 0.5773502691

Numeric integration

f(x) = x^2 // fn
int(f, 0, 1) // = 0.3849999999999999

Fibonacci & tribonacci

fib(11) // = 89
trib(11) // = 149

Polynom

a = polynom(1, 2, 3) // = 1 + 2x + 3x^2
a + a // = 2 + 4x + 6x^2
a * a // = 1 + 4x + 10x^2 + 12x^3 + 9x^4

Units

equalBase function

// meters & centimeters
equalBase(5m, 5cm) // = true

// meters & hours
equalBase(5m, 5h) // = false