•Any time until you input a value for the final coefficient (c2 for two unknowns, d3 for three unknowns), you can use the [ and ] keys to move between coefficients on the screen and make changes, if you want.
•Note that you cannot input complex numbers for coeffi- cients.
Calculation starts and one of the solutions appears as soon as you input a value for the final coefficient.
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Solution
Press the ]key to view other solutions. Use [and ] to scroll between all of the solutions for the equation. Pressing the tkey at this point returns to the coefficient input screen.
• Example: To solve the following simultaneous equations 2x + 3y – z = 15
3x – 2y + 2z = 4 | (x = 2, y = 5, z = 4) |
5x + 3y – 4z = 9 |
(Unknowns?) | 3 |
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(a1?) ....... (d1?) | 2 | =3 | = D1 =15 = |
(a2?) ....... (d2?) | 3 | = D2 = 2 =4 = | |
(a3?) ....... (d3?) | 5 | =3 | = D 4 =9 = |
(x = 2) | ] |
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(y = 5) | ] |
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(z = 4) |
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25