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