kTrigonometric and Inverse Trigonometric Functions

sin(, cos(, tan(, sin–1(, cos–1(, tan–1(

A Syntax and Input

sin({n}), cos({n}), tan({n}), sin–1({n}), cos–1({n}), tan–1({n})

Example: sin 30 = 0.5, sin–10.5 = 30 (Angle Unit: Deg)

 

s30)w

s i n (

30 )

 

 

05

 

 

 

 

 

 

 

–1

)0.5)w

s i n–1

( 0 . 5 )

1s(sin

 

30

 

 

 

ANotes

•These functions can be used in the CMPLX Mode, as long as a complex number is not used in the argument. A calculation like i × sin(30) is supported for example, but sin(1 + i) is not.

•The angle unit you need to use in a calculation is the one that is currently selected as the default angle unit.

kAngle Unit Conversion

You can convert a value that was input using one angle unit to another angle unit.

After you input a value, press 1G(DRG') to display the menu screen shown below.

D R G

1 2 3

1(D): Degrees

2(R): Radians

3(G): Grads

Example: To convert π radians and 50 grads both to degrees 2

The following procedure assumes that Deg (degrees) is currently specified for the default angle unit.

(1e(π)/2)

(π÷2 ) r

90

1G(DRG')2(R)E

 

 

 

 

 

 

 

 

501G(DRG')

50g

45

3(G)E

 

 

 

 

 

 

E-27