7
<Example>
6. ANGULAR UNIT
Operation
Display
90
Angular values are converted from DEG to RAD to GRAD with each push
of the DRG►
key (2nd function of ). This function is used when doing calculations related to
trigonometric functions or coordinate geometry conversions.
Degrees (DEG is shown at the top of the display)
A commonly used unit of measure for angles. The angular measure of a circle
is expressed as 360°.
Radians (RAD is shown at the top of the display)
Radians are different from degrees and express angles based on the circumfer-
ence of a circle.
1
80° is equivalent to
π
radians. Therefore, the angular mea-
sure of a circle is 2
π
radians.
Grads (GRAD is shown at the top of the display)
Grads are a unit of angular measure used in Europe, particularly in France. An
angle of 90 degrees is equivalent to
1
00 grads.
The relationships between the three types
of angular units can be expressed as right:
π
2
90° (DEG) =
π
/2 (RAD) =
1
00 (GRAD) =
Check to confirm 90 degrees equaling
π
/2 radians
equaling
1
00 grads. (
π
=3.
1
4
1
59...)
(DEG)
Summary of Contents for EL-W516T
Page 1: ...SCIENTIFIC CALCULATOR OPERATION GUIDE SCIENTIFIC CALCULATOR OPERATION GUIDE EL W535TG W516T ...
Page 32: ...32 Example Operation Absolute Value Returns an absolute value Display 3 4 ...
Page 35: ...35 20 30 20 17 2 30 17 2 Trigonometric Functions ...
Page 37: ...37 4 8 12 16 Trigonometric Functions ...
Page 48: ...48 3 10 20 3000 x Integration calculation dx x x 100 0 dx ...