Help with solve()

[Eddie W. Shore]

You can try the following App functions:


Solve.SOLVE(equation, variable to solve for, guess)

Any variables have constants, store the values in those variables first before executing Solve.SOLVE.

Example:
X^2 + 2*T*X + 1 = T
Solve for X when T = -3, with guess X = 0

-3 > T (or T:=-3)
Solve.SOLVE(X^2 + 2*T*X 1 = T, X, 0) returns with 0.7639320225
To store the result in X:
X := Solve.SOLVE(X^2 + 2*T*X 1 = T, X, 0)


Function.ROOT( f(X) [=0], guess)

Example: Find the root nearest to 3 for X^3 - 1.2*X - 1.
Root: 1.3861532869

Caution: ROOT could find a nearby extremum (spelling?) rather than a root. Example, try the above when X= 0.