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Quadratic Equation

Formula : ax2 + bx + c = 0
CASIO : fx-3600 Pvfx-3900 Pvfx-50F
PS. x^2 = x2
CASIO fx-3600 Pv
  I. MODE EXP
 II. P1 / P2
  1. ENT 2
  2. Kin 1
  3. Kin 4
  4. ENT 13
  5. Kin 2
  4. ENT 15
  7. Kin 3
  8. Kin x 4
  9. 4
 10. +/-
 11. Kin x 4
 12. Kout 2
 13. +/-
 14. Kin 5
 15. Kin 6
 16. x^2
 17. Kin + 4
 18. Kout 4
 19. HLT
 20. √
 21. Kin + 5
 22. Kin - 6
 23. 2
 24. x
 25. Kout 1
 26. =
 27. Kin ÷5
 28. Kin ÷6
 29. Kout 5
 30. HLT
 31. Kout 6
 32. HLT
III. MODE .
How to run ?
1. a
2. RUN
3. b
4. Run
5. c
6. RUN

Display :
1. (discriminant) 
   press RUN 
2. (root) 
   press RUN 
3. (another root)






















CASIO fx-3900 Pv
 I. MODE 0
II. P1 / P2 / P3 / P4
 1. ENT
 2. Kin 1
 3. Kin 4
 4. ENT
 5. Kin 2
 6. ENT
 7. Kin 3
 8. Kin x 4
 9. 4
 10. +/-
 11. Kin x 4
 12. Kout 2
 13. +/-
 14. Kin 5
 15. Kin 6
 16. x^2
 17. Kin + 4
 18. Kout 4
 19. +/-
 20. ÷
 21. 4
 22. ÷
 23. Kout 1
 24. =
 25. HLT
 26. Kout 4
 27. HLT
 28. √
 29. Kin + 5
 30. Kin - 6
 31. 2
 32. x
 33. Kout 1
 34. =
 35. Kin ÷5
 36. Kin ÷6
 37. Kout 5
 38. HLT
 39. Kout 6
 40. HLT
III. MODE .
How to run ?
1. a
2. RUN
3. b
4. Run
5. c
6. RUN

Display :
1. (maximum/minimum value)
   press RUN
2. (discriminant)
   press RUN
3. (root)
   press RUN
4. (another root)




























CASIO fx-50F
Quadratic Equation has been 
stored into this calculator 
(formula 1).



















How to run ?
1. a
2. FMLA
3. b
4. RUN
5. b
6. RUN
7. c
8. RUN

Display :
1. (root)
   press RUN
2. (another root)
   press RUN
------------------
   press Kout6
1. (discriminant) 
   press Kout 4 
2. (root) 
   press Kout 5
3. (another root) 


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