Question about Texas Instruments TI-30XA Calculator

# Solving a linear equation from TI 83 - Texas Instruments TI-30XA Calculator

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• Texas Instru... Master

Hi,
You have two ways to solve an equation (not just linear) in the TI83Plus

1. The solve( command the syntax of which is solve( expr, var,guess, {lower_limit, upper_limit}). Here expr is the expression (without =0), var is the variable you solve for, guess is you estimate of the solution, lower_limit and upper_limit are the bounds of the domain where you are looking for a solution. Of course your guess must be between theses limits.
2. The Interactive Solver.
The solve( command
• The solve command is accessed through the catalog of commands [2nd][0] (CATALOG).
• Press [LN] (S) to let the cursor jump to the first command that starts with s.
• Scroll down to reach the solve( command.
• Select it and press [ENTER]. The command echoes on main screen.
• Enter the different arguments: expr, var, guess, etc.
• Close the right parenthesis and press [ENTER].
• Wait for the solution to be displayed.
The interactive solver

Press [MATH][0:Solver]. You see what is on the first picture (I entered K-0.5*V^2). Press [ENTER]. You see what is on the right picture.

In the interactive solver you enter a value for all the parameters, constants, for all, save the entity you are solving for, here V. So you must clear the 0 to the right of the = sign after the V. when finished you press [ALPHA][ENTER] (SOLVE).
Here is what I get for the small exemple I chSolving a linear equation from TI 83 - 7b60093.jpgbr />
Left -rt=0 shows that the root was found to within the calculator's tolerance.

Hope it helps.
Thank you for using FixYa.

Posted on Nov 23, 2009

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Posted on Jan 02, 2017

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