Casio fx-115ES - Manual (Page 31)

E-29
k Power Functions and Power Root
Functions
X
2
, X
3
, X
–1
, X^, ' ' ' ' '(, 3 ' ' ' ' '(, ^' ' ' ' '(
Appendix <#024> to <#028>
k Rectangular-Polar Coordinate Conversion
Rectangular Polar Coordinates
Coordinates (Rec) (Pol)
• Coordinate conversion can be performed in the COMP and STAT
calculation modes.
Converting to Polar Coordinates (Pol)
Pol(X, Y)
X: Specifies the rectangular coordinate X value
Y: Specifies the rectangular coordinate Y value
• Calculation result
θ
is displayed in the range of –180
° <
θ
< 180
°.
• Calculation result
θ
is displayed using the calculator’s default angle
unit.
• Calculation result r is assigned to variable X, while
θ
is assigned
to Y.
Converting to Rectangular Coordinates (Rec)
Rec(
r ,
θ
) r : Specifies r value of polar coordinate
θ
: Specifies
θ
value of polar coordinate
• Input value
θ
is treated as an angle value, in accordance with the
calculator’s default angle unit setting.
• Calculation result x is assigned to variable X, while y is assigned
to Y.
• If you perform coordinate conversion inside of an expression instead
of a stand-alone operation, the calculation is performed using only
the first value (either the
r -value or the X-value) produced by the
conversion.
Example: Pol ('
2, ' 2) + 5 = 2 + 5 = 7
Appendix <#029> to <#030>