Casio fx-9750G Manual Calculations - Manual (Page 14)

58
k k k k k Coordinate Conversion
u uu u u Rectangular Coordinates u uu u u Polar Coordinates
• With polar coordinates,
θ can be calculated and displayed within a range of
–180
°< θ < 180° (radians and grads have same range).
• Be sure to specify “Comp” for Calculation/Binary, Octal, Decimal, Hexadecimal
Setting Mode.
Example To calculate r and
θ °
when x = 14 and y = 20.7
Operation Display
!Zcccc1(Deg)J
K6(g)5(ANGL)6(g)
1(Pol()14,20.7)w
Ans
1 –24.989 –
→ 24.98979792 (r)
2 –55.928 – → 55.92839019 (θ)
Example To calculate x and y when r = 25 and
θ = 56 °
Operation Display
!Zcccc1(Deg)J
K6(g)5(ANGL)6(g)
2(Rec()25,56)w
Ans
1 –13.979 –
→ 13.97982259 (x)
2 –20.725 – → 20.72593931 (y)
k k k k k Permutation and Combination
u uu u u Permutation u uu u u Combination
• Be sure to specify “Comp” for Calculation/Binary, Octal, Decimal, Hexadecimal
Setting Mode.
P.5
n ! n !
n Pr = ––––– n Cr = –––––––
(n – r)! r ! (n – r)!
P.5
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Function Calculations