CASIO FX 260
SOLAR SCIENTIFIC CALCULATOR
8
TRIGONOMETRY
Be sure to select the angle unit (D,R,G) you want to use before beginning
a calculation.
Mode 4 = Degrees (Deg)
Mode 5 = Radians (Rad)
Mode 6 = Grad s (Gra)
Trigonometric/Inverse Trigonometric Functions
To calculate the sine, cosine, or tangent of the displayed angle.
Example: (in degree mode):
30j
(= .5)
To calculate the arcsine, arccosine, or arctangent
Example: (in degree mode):
.5qj
(= 30)
Hyperbolic/Inverse Hyperbolic Functions
To calculate the hyperbolic sine, cosine, or tangent of the displayed angle.
Example: (in degree mode):
3.6cq
(= 18.28545536)
To calculate the hyperbolic arcsine, arccosine, or arctangent of the displayed angle.
Example: (in degree mode):
30cq
Sin-1
h
OR
30qc
Sin-1
h
(= 4.094622224)
Coordinate Conversion
You can convert between rectangular and polar coordinates.
Make sure you are using the correct angle unit (D,R,G) before staring your calculation.
q
R–P
+
Rectangular to polar coordinate conversion
q
P–R
-
Polar to rectangular coordinate conversion
q
Use this operation to switch between the two coordinates produced by
the conversion operation.
Example: To convert polar coordinates (r = 2,
θ
= 60) to rectangular
coordinates (
x, y
).
2q
P–R
-
60p
This gives you the
x
value.
q
This gives you the
y
value.
Degrees/Minutes/Seconds
You can perform calculations using degrees, minutes, and seconds, and convert between
sexagesimal and decimal values.
Example:
Keystrokes
Display
2.5p
2.5
Press
x
2° 30° 0
10x15x12xO4p
41° 0° 48°
