No. 
Symbol 
Description 
ⓐ 
History box 
Choice
box which include all the previous inputted formula expressions.

ⓑ 
Input Field 
Input
field for numeric formula needed to calculation

ⓒ 
Status Area 
Text area which display
detailed process of calculation 
ⓓ 
2^{nd} Function
Group 
2nd
function group for mathematic functions which include
trigonometric, logarithm function, etc 
ⓔ 
Angle
Mode 
Choice box for mode of angle;
[degree] or
[radian]

ⓕ 
Precise
Level 
Choice box for choosing precise level of calculating
process 
ⓖ 
Recycle
Button 
Moving result value of
regionⓗ to Input
fieldⓑ for use result of calculation again.

ⓗ 
Result
Area 
Region which display the result of
calculation

ⓘ 
Clear Button 
Clear all regions and initialize
calculator

ⓙ 
1st
Function Group 
1st
function group for mathematic functions which include
trigonometric,
exponential, logarithm function, etc 
ⓚ 
Back
Space 
Back space button which is the same
function with back space on keyboard.

ⓛ 
Enter Button 
Button which perform the calculation based on inputted
numeric formula expression 