Help with solve()
11-09-2017, 09:07 PM
Post: #17
 Eddie W. Shore Senior Member Posts: 1,606 Joined: Dec 2013
RE: Help with solve()
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.
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 Messages In This Thread Help with solve() - AngryNapkin - 03-31-2017, 02:07 PM RE: Help with solve() - mop80087 - 03-31-2017, 03:19 PM RE: Help with solve() - Arno K - 03-31-2017, 03:22 PM RE: Help with solve() - Tim Wessman - 03-31-2017, 04:03 PM RE: Help with solve() - AngryNapkin - 03-31-2017, 04:18 PM RE: Help with solve() - AngryNapkin - 03-31-2017, 04:26 PM RE: Help with solve() - roadrunner - 04-01-2017, 01:02 AM RE: Help with solve() - AngryNapkin - 04-01-2017, 01:22 AM RE: Help with solve() - roadrunner - 04-01-2017, 01:44 AM RE: Help with solve() - AngryNapkin - 04-01-2017, 02:31 AM RE: Help with solve() - Brad Barton - 04-01-2017, 03:48 AM RE: Help with solve() - AngryNapkin - 04-02-2017, 09:38 PM RE: Help with solve() - roadrunner - 04-03-2017, 12:00 AM RE: Help with solve() - Kiyan - 11-09-2017, 06:00 PM RE: Help with solve() - AngryNapkin - 04-03-2017, 01:00 AM RE: Help with solve() - roadrunner - 04-03-2017, 01:25 AM RE: Help with solve() - Eddie W. Shore - 11-09-2017 09:07 PM RE: Help with solve() - Kiyan - 11-09-2017, 09:48 PM

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