Casio fx-9750G PLUS - Manual (Page 76)

48
k k k k k Coordinate Conversion
u u u u u Rectangular Coordinates u u u 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
mode.
Example To calculate r and θ °
when x = 14 and y = 20.7
Operation Display
!Z cccc1 (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
!Z cccc1 (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 u u u u Permutation u u u u u Combination
• Be sure to specify “Comp” for Calculation/binary, octal, decimal, hexadecimal
mode.
P.5
2 - 3
Function Calculations
n ! n !
n Pr = ––––– n Cr = –––––––
(n – r)! r ! (n – r)!
P.5