K degrees, minutes, seconds calculations – Casio FX-820MS User Manual

Page 16

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E-14

Example 4 : To discount 3500 by 25%

(2625)

3500

-

25

A

v

,

Example 5 : To discount the sum of 168, 98, and 734 by

20%

(800)

168

+

98

+

734

=

g

A

j

q

p

q

-

20

A

v

,

* As shown here, if you want to use the current Answer

Memory value in a mark up or discount calculation, you
need to assign the Answer Memory value into a variable
and then use the variable in the mark up/discount
calculation. This is because the calculation performed
when

v

is pressed stores a result to Answer Memory

before the

,

key is pressed.

Example 6: If 300 grams are added to a test sample

originally weighing 500 grams, what is the percentage
increase in weight?

(160%)

300

+

500

A

v

Example 7: What is the percentage change when a

value is increased from 40 to 46? How about to 48?

(15%, 20%)

46

,

40

A

v

e

e

e

e

e

e

8

=

k Degrees, Minutes, Seconds

Calculations

• You can perform sexagesimal calculations using degrees

(hours), minutes, and seconds, and convert between
sexagesimal and decimal values.

Example 1: To convert the decimal value 2.258 to a

sexagesimal value and then back to a decimal value

*

2.258

=

2.258

A

O

2

°15°28.8

I

2.258

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