| polyval {pracma} | R Documentation |
Evaluate polynomial given as a numeric vector.
polyval(p, x)
p |
vector representing a polynomial |
x |
vector of values where to evaluate the polynomial |
Evaluate the polynomial given by p at the values specified
by the elements of x. If x is a matrix, the polynomial
will be evaluated at each element and a matrix returned.
vector of values
# Evaluate 3 x^2 + 2 x + 1 at x = 5, 7, and 9 p = c(3, 2, 1); polyval(p, c(5, 7, 9)) # 86 162 262