CALCULATOR
TECHNIQUES
ENGR. REX JASON H. AGUSTIN
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Engineer Rex Jason H. Agustin's Calculator Techniques: Memory, Conversions, and Complex Nu, Study notes of Mathematics
Techniques for using a calculator, including information on memory variables, converting between degrees, radians, and gradians, and solving complex numbers. It also includes examples and exercises for practicing these skills.
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2019/2020
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CALCULATOR
TECHNIQUES
ENGR. REX JASON H. AGUSTIN
HOW TO CLEAR MEMORY
- SHIFT 9 1 =
- This means you will automatically go to MODE 1
- SHIFT 9 2 =
- All values stored in the memory variables will be erased
- SHIFT 9 3 =
- This means you will automatically go to MODE 1 and all values stored in the memory variables will be erased.
MODE 1 :
GENERAL
CALCULATIONS
Convert 210 47'12"todecimal degrees.
HOW TO CONVERT BETWEEN
DEGREES, RADIANS AND GRADIANS
21.7866666 7
21 47 12
: 0 0 0
DISPLAY
Convert 1200 toradians.
HOW TO CONVERT BETWEEN
DEGREES, RADIANS AND GRADIANS
3
2
120
: 0
DISPLAY
What is 1200 in centesimal system?
PAST CE BOARD EXAM
ENTER
3
400
120
: 0
DISPLAY
HOW TO GET THE POLAR AND
RECTANGULAR COORDINATE OF A
POINT IN THE CARTESIAN PLANE
- 211102551 , 56. 30993247
( 4 , 6 )
:
r
Pol
DISPLAY
PAST CE BOARD EXAM
Find thepolarcoordinateof thepoint(4,-6).
HOW TO GET THE POLAR AND
RECTANGULAR COORDINATE OF A
POINT IN THE CARTESIAN PLANE
PAST ECE BOARD EXAM
r
Pol
DISPLAY
NOTE:risstoredautomatically toXand toY.
cos( )
Y
DISPLAY
whosepolarcoordinateis (3,120 ).
Find therectangular coordinate of a point 0
- 5 , 2. 59807621
Rec(3,120)
DISPLAY:
X Y
PAST ECE BOARD EXAM
10 finalists in a studentessaycontest?
thewinner and thefirst runner up fromamong the
In how many different wayscan the judges choose
Note:order isimportant here
Thereare 10 finalists taken 2 at a time.
Solution :
90
10 2
DISPLAY: P
PAST ECE BOARD EXAM
HOW TO EVALUATE FACTORIAL NUMBERS
Find thevalue of 10!
3628800
10!
DISPLAY:
Evaluate f ( 4 , 3 ) if f(x , y) 4 x^3 y^2 3 x^2 y- 2 xy^2 y^3
HOW TO EVALUATE
FUNCTIONS
Find theremainder when3x^4 2x^3 - 4x^2 x 4 isdivided by x2.
PAST ME BOARD EXAM
f(x) x x - x x ,remainder f(- )
Solution:
3 4 2 3 4 2 4 2
18
3 2 4 4
DISPLAY:
x^4 x^3 x^2 x
Answer :Remainder 18