Find the zeros of a quadratic equation.
quadratic(b2, b1, b0)
quadratic2(b2, b1, b0)
b2 | the coefficient of the x^2 term |
---|---|
b1 | the coefficient of the x term |
b0 | the constant term |
numeric vector of solutions to the equation
quadratic
and quadratic2
implement the quadratic
equation from standard algebra in two different ways. The
quadratic
function is susceptible to cascading numerical error
and the quadratic2
has reduced potential error.
Other algebra:
bilinear()
,
cubicspline()
,
division
,
fibonacci()
,
horner()
,
isPrime()
,
linterp()
,
nthroot()
,
polyinterp()
,
pwiselinterp()
quadratic(1, 0, -1)
#> [1] -1 1
quadratic(4, -4, 1)
#> [1] 0.5 0.5
quadratic2(1, 0, -1)
#> [1] -1 1
quadratic2(4, -4, 1)
#> [1] 0.5 0.5