2-4-3

Function Calculations

ILogarithmic Functions (log, ln) and Exponential Functions (e, ^, I )

Problem

Use this keyboard:

 

 

 

 

Operation

 

 

 

 

 

 

 

mth

abc

cat

2D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

log1.23 (log101.23) =

 

 

Func

 

J1.23 Uor

0.08990511144

 

 

 

 

510 C 1.23 U

 

 

 

 

 

 

 

 

 

ln90 (loge90) = 4.49980967

 

 

Func

 

(90 Uor

 

 

 

 

 

5LC

 

 

 

 

 

C 90 U

 

 

 

 

 

 

 

 

 

log39 = 2

 

 

Func

 

J3 9 Uor

 

 

 

 

 

53 C 9 U

 

 

 

 

 

 

 

 

 

101.23 = 16.98243652

 

MATH

Cmd

 

10 Y1.23 U

e4.5 = 90.0171313

 

MATH

Func

 

C4.5 Uor

 

 

 

 

 

04.5 U

 

 

 

 

 

 

 

 

 

(–3)4= (–3) σ (–3) σσ(–3) σ

 

MATH

Cmd

 

 3 Y4 U

(–3) = 81

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–34= – (3 σ 3 σ 3 σ 3) = –81

 

MATH

Cmd

 

3 Y4 U

1

 

MATH

Cmd

 

123 Y1 7 Uor

7 123 (= 123 7 )

 

 

 

 

 

 

 

 

 

 

= 1.988647795

 

 

 

 

7 C 123 U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 + 3 σ 3 64 – 4 = 10

 

MATH

Cmd

 

2 3 64 Y1 

 

 

 

 

 

3  4 Uor 2

 

 

 

 

 

3 3 C 64 C 4 U

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Can be omitted.

 

 

 

 

 

 

 

 

 

Tip

• ^ and 8have a higher calculation priority sequence than σ and ÷.

20060301