Datexx 6518206 Calculation priority, Making corrections, Output Operation, Calculation range

Calculation priority

Calculation priority is automatically determined by the calculator. Algebraic expressions are entered as they would be written.

Single variable functions and calculations in parenthesis have a higher priority than basic func- tions like +, -, x, ÷.

During calculations lower priority calculations are stored in the stack memory and processed in turn. Six levels of calculations may be stored in stack memory.

Calculation range

A maximum of 9 digits in the mantissa or 10 digits plus 2 digits for exponent may be entered. If a result is too large to display, an Error indicator appears. This applies for Decimal/Octal/Hexadecimal modes.

Statistical calculations

Press MODE 5 to enter Statistical Mode. This clears all function commands and all registers except the memory.

The results of statistical calculations are stopped in the statistical calculation memory. As a result, you can perform statistical calculations again by exiting to another mode and then resetting the calculator for statistical calculation mode.

Entering Statistical data
Ex. 1: 2 DATA	3 DATA	4 DATA
Ex. 2: 125 LOG DATA		100 LOG DATA

Ex. 3: (123 M+ MR DATA)

Making corrections

C/CE clears the last digit pressed.

INV DEL deletes the last DATA entered.

Output of Statistical Calculation Results
Output	Operation
Arithmetic mean	INV x+
Standard Deviation of sample	INV sn-1
Standard Deviation population parameter	INV sn
Variance of Sample	INV sn-1 x2
Variance of Population	INV sn x2
Sum of data	INV Sx
Sum of Squares of data	INV Sx2

14 15