Casio fx9750G - Coordinate Conversion; Permutation and Combination

58
kk
kk
k Coordinate Conversion
uu
uu
u Rectangular Coordinates
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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)
kk
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k Permutation and Combination
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u Permutation
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u Combination
• Be sure to specify “Comp” for Calculation/Binary, Octal, Decimal, Hexadecimal
Setting Mode.
P. 5
n! n!
nPr = ––––– nCr = –––––––
(n – r)! r! (n – r)!
P. 5
2 - 3 Function Calculations