Verykool i800 - Manual (Page 52)

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Delete event
1.
Navigate through: Main menu
 Calendar.
2. Select the date on which the event was created.
3. Press the event item to view event content details.
4. Click <Edit> to edit event information; select <Delete> to delete the
event.
Calculator
Your phone supports simple calculations including addition, subtraction,
multiplication, division, memory calculation and negation.
The calculator supports a 10-digit input space including the decimal point,
operand and result.
Calculation
1.
Navigate through: Main menu
 Tools  Calculator.
2. General operation: input first number
 input operation symbol
(addition, subtraction, multiplication or division)
 input second
number
 equal sign.
3. To continue calculating, use the result after equal sign as the first
number and go on to input the next operation symbol and the next
number.
4. The calculator operates in accordance with the input order. The
result is displayed in the input area.
Function menu for calculator:

MS: This button is a memory management tool that works
together with MR and MC. MS saves the current number to
memory. It does not function as an operation so it will not
affect the currently displayed content. Note: You cannot
save multiple data. The previously saved data will be
replaced by the newly saved one. The saved data can be
used repeatedly.

MR: This button is a memory management tool that works
with MS and MC. MR retrieves the saved number and uses
it as the current number. If there already a number, it will be