Radio Shack EC-235 دليل المستخدم

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EC-235 8-Digit Pocket Calculator
OWNER’S MANUAL — Please read before using this equipment.
Your RadioShack EC-235 8-Digit Pocket Calculator’s compact size
Exponential, Square Root,
lets you use it almost anywhere.
and Reciprocal Calculations
Percentage Key — simplifies discount, percentage, and tax calcula-
Calculation You Press You See
tions.
3
2 = 8 2 ···· = = ;1 ;1 ;1 ;1
Square Root Key — quickly computes the square root of the dis-
The square root of 2 is 1.4142135 2 4 4 4 4111174 74 74 7

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CARE SPECIFICATIONS Keep the calculator dry; if it gets wet, wipe it dry immediately. Use and Power Source .................................................... One 389A Button-Cell Battery store the calculator only in normal temperature environments. Handle Battery Life ............................................................................ About 3000 Hours the calculator carefully; do not drop it. Keep the calculator away from Operating Temperature .........................................