Calculated Industries ConcreteCalc User Manual download pdf (Page 54)

Accuracy/Display Your calculator has

an eleven digit display. This is made up

of seven digits (normal display) and

four digits for the fraction. In a standard

calculation, each calculation is carried

out internally to 10 digits and rounded

to a 7-digit standard display. If the next

undisplayed digit is five or more, the

5/4 rounding technique adds 1 to the

least significant digit in the display. If

the digit is less than five, no rounding

occurs.

“Error” When an incorrect entry is

made, or an answer is beyond the cal-

culator’s range, the word “Error” dis-

plays. To clear an error you must hit the

[On/C] key twice. When you have

determined what caused the error, re-

key the problem. An “Error” will also

occur if you enter a mathematical

impossibility such as division by zero.

Auto-Range If an “overflow” occurs due

to an input or calculation that use more

digits than the display’s standard 7-digit

range, the answer automatically displays

in the next larger unit (instead of show-

ing “Error”). i.e., 10,000,000 mm is

greater than the 7-digit range; therefore,

10,000 m is displayed instead. This auto-

APPENDIX A

54 – ConcreteCalc™

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Calculated Industries ConcreteCalc User Manual Page 54