cub_root_select.Rd
Find cube root of the form ax^3 + bx^2 + cx + d=0
cub_root_select(a, b, c, d, q_1, q_2)
a | parameter 1 in cubic equation |
---|---|
b | parameter 2 in cubic equation |
c | parameter 3 in cubic equation |
d | parameter 4 in cubic equation |
q_1 | lower quantile to bound the root |
q_2 | upper quantile to bound the root |