Introduction - If you have any usage issues, please Google them yourself
Calculator operation
(CM) clears the stored value
(RM) Remove the memory value
(M-) current displayed value subtracted stored and saved
(M+/MS) of the currently displayed value in memory, the Interrupt digital input
(0-9) buttons to input numbers 0-9 character keys
(.) Button is used to enter a decimal point
(+ /-) Button is used to convert the current value of the positive and negative
(√) the square root
( ) Percentage of demand
(→) to provide the Backspace function
(C) button to clear the previous input
(=) Confirm the results
Zero (AC) Clear all data results and Operators
(CE) clears the existing values in the registers and displays "0." Data re-enter