Knowledge Base

Solution 12065: nSolve() (Numeric Solve) Function Algorithm for the TI-89 Family, TI-92 Family, Voyage 200 and TI-Nspire™ CAS Family Products.

What is the nSolve() (numeric solve) function algorithm used by the TI-89 family, TI-92 family, Voyage 200 and TI-Nspire CAS family products?

The algorithm used for nSolve() by the TI-89 family, TI-92 family, Voyage 200 and TI-Nspire CAS family products is described below.

nSolve() uses a combination of bisection and the secant method, as described in Shampine and Allen Numerical Computing: An Introduction, W.B. Saunders Co., 1973.