kTrigonometric and Inverse Trigonometric Functions

•Be sure to set the angle unit before performing trigonometric function and inverse trigonometric function calculations.

(90° = π radians = 100 grads) 2

• Be sure to specify Comp for Mode in the Setup screen.

 

 

Example

Operation

 

 

 

 

 

 

cos (

π

1

 

!m(SET UP)cccccc2(Rad)J

 

rad) =

 

(0.5)

 

3

2

c$!E(π)c3w

 

 

 

 

 

<Linear input/output mode>

 

 

 

 

 

c(!E(π)/3)w

2 • sin 45° ⋅ cos 65° = 0.5976724775

!m(SET UP)cccccc1(Deg)J

 

 

 

 

 

2*s45*c65w*1

sin–10.5 = 30°

 

 

!s(sin–1) 0.5*2w

(x when sinx = 0.5)

 

 

 

 

 

 

 

*1 * can be omitted.

*2 Input of leading zero is not necessary.

kLogarithmic and Exponential Functions

• Be sure to specify Comp for Mode in the Setup screen.

 

Example

Operation

 

 

 

 

log 1.23 (log101.23) = 0.08990511144

l1.23w

log28 = 3

4(MATH)2(logab) 2e8w

 

 

 

<Linear input/output mode>

 

 

 

K4(CALC)6(g)4(logab) 2,8)w

(–3)4= (–3) ⋅ (–3) ⋅ (–3) ⋅ (–3) = 81

(-3)M4w

1

 

 

7 123 (= 123

 

) = 1.988647795

!M(x') 7e123w

7

 

 

 

<Linear input/output mode>

 

 

 

7!M(x')123w

•The Linear input/output mode and Math input/output mode produce different results when two or more powers are input in series, like: 2 M 3 M 2.

Linear input/output mode: 2^3^2 = 64 Math input/output mode: 232 = 512

This is because the Math input/output mode internally treats the above input as: 2^(3^(2)).

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