calculator tutorial

1. Technology
In
Mathematics

2. FEATURES IN CALCULATOR

3. KEYCAPKEYCAP
MARKINGSMARKINGS
and itsand its
FUNCTIONFUNCTION

4. What is
SHIFT and
ALPHA?

5. SHIFT ALPHA

6. Example:
Indicates the function that is
accessed by the key
operation (shift…sin) before
it.

7.  The alternate
function is
indicated by the
text printed
above the key.

8. The following shows what the different colorsThe following shows what the different colors
of the alternate function key text mean.of the alternate function key text mean.
If the key
marking is color:
It means:
Yellow Press (shift) and then
the key to access the
applicable function.
Red Press (alpha) and then
the key to input the
applicable variable,
constant, or symbol.
Purple
(or enclosed in
purple brackets)
Enter the CMPLX Mode
to access the function.
Green
(or enclosed in
green brackets)
Enter the BASE-N
moode to access the
function.

9. Fraction
Calculation

10. Fraction
Addition
Example:

11. Fraction
Addition
Example:

12. Fraction
Multiplication
Example:

14. Percent
Calculation

16. Sexagesimal
Calculation

17. Example:

18. EQUATION CALCULATION
(eqn)
• Press MODE 5 (EQN) to enter the
EQUATION mode.
• On the menu that appears, select an
equation type:
To select this calculation type: Press this key:
Simultaneous linear equation with two
unknowns
1 (anX + bnY = Cn )
Simultaneous linear equation with three
unknowns
2 ( anX + bnY + cnY =dn)
Quadratic equation 3 (aX2
+ bX + c =0)
Cubic equation 4 (aX3
+ bX2
+ cX + d = 0)

19. EQUATION CALCULATION
(eqn)
• Example:
Find the values of X in the equation
4x2
+ x - 5 =0
Step 1.
Identify first the value of a, b and c;
a=2 , b=1, c=-3

20. EQUATION CALCULATION
(eqn)
• Step 2.
Input the values of a, b and c.
• Step 3.
Find the value of X:
PRESS THE = for the first value of X and
press again = for the second value of X

21. Application for
Elimination method
Example:
Find the value of X, Y, and Z in the
following equations:
1. x – y + 3z = 6
2. x + 2y – z = 0
3. -x + 3y + z = 8

22. Quadratic
equation
Answer: x = 1.4142
Find the value of x:

23. Cubic equation
Find the values of x:
Answers: x1 = -1
x2 = 2
x3 = 1

24. MATRIX CALCULATION
( MATRIX)

25. CALCULATOR @ MATRIX
MODE:
Your calculator will display:

26. EXAMPLE

27. STATISTICS
(STAT)
X Y
98 86
87 88
99 98
91 89
97 97
92 86
95 98
90 95
93 94

28. Try this…

29. Solve
Find the value of X

31. 2. 10x + 9y – 4z = 39
6x – 3y + 7z = 23
+ 8y – 2z = 11
Solve
Find the value of X, Y, Z

32. Answer
X= 1711/584
Y= 513/292
Z= 223/146

33. 3. 20x - 2y – z = 10
4x + 12y + 3z = 40
9x + 11y – 4z = 29
Solve
Find the value of X, Y, Z

34. Answer
X= 698/821
Y= 2133/821
Z= 1484/821

35. A= 5 7
8 4
B= 2 6
7 9
C= 9 7 8
3 4 5
1. 3A x 2B = ?
2. 2A + 5B = ?
3. A x C = ?
4. 2A x C = ?
5. 3B x 2C = ?
Solve the following

36. Score A Score B
88 86
97 88
89 99
93 99
97 97
92 86
95 98
94 93
92 91

37. THANK YOU FOR
LISTENING...
GOD Bless 