Radio Shack EC-2037 Owner'S Manual Download Page 7

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CALCULATION EXAMPLES

You can perform basic calculations (addition, subtraction, and
so on) with this calculator as you would with most other calcula-
tors. The following sections include examples of more ad-
vanced calculations.

Mixed Calculations

Example: 256 + 378 – 223

2.3 ÷ 2.5 + 24 – 36 =

You Press:

You See:

256 + 378 =

634.

– 223 =

411.

××××

2.3 =

945.3

÷ 2.5 =

378.12

+ 24 =

402.12

– 36 =

366.12

Summary of Contents for EC-2037

Page 1: ...Cat No 65 534 OWNER S MANUAL Please read before using this equipment EC 2037 10 Digit Dual Powered Metal Case Desktop Calculator with Tilt Display ...

Page 2: ...alculation results Adjustable Tilt Display lets you adjust the display to the best viewing angle Four Function Memory saves important subtotals and lets you add to and subtract from them Percentage Calculation simplifies discount percentage change and tax calculations Automatic Power Off conserves battery power by turning off your calculator if you do not press a key for about 5 minutes Square Roo...

Page 3: ...4 Correcting Entry Errors 5 Estimating Calculation Results 6 Calculation Examples 7 Mixed Calculations 7 Constants 8 Percentage 9 Add On 9 Discount 9 Reciprocal 10 Exponent 10 Square 10 Square Root 11 Memory Calculations 11 Care 13 Replacing the Battery 14 Specifications 15 ...

Page 4: ... a calculation from the display press ON C again If you do not press a key for about 5 minutes your calcula tor automatically turns off To turn it off sooner press OFF USING THE KEY Press to change the displayed number from positive to neg ative or from negative to positive When the number is negative appears on the left side of the display ...

Page 5: ...ulation E appears in the lower left corner when A calculation result exceeds 10 digits to the left of the deci mal point This is an overflow error See Estimating Calcu lation Results on Page 6 A memory calculation result exceeds 10 digits to the left of the decimal point The memory contents remain unchanged You try to divide by 0 You try to calculate the square root of a negative number If E appea...

Page 6: ...ing these steps 1 Count the number of digits displayed to the left of the deci mal point 2 Remove the decimal point 3 Add as many zeros to the right of the number as there were digits to the left of the decimal point For example if E 251 0142064 appears the approximate answer is 2 510 142 064 000 If E 17319 70347 appears the approximate answer is 173 197 034 700 000 ...

Page 7: ...on and so on with this calculator as you would with most other calcula tors The following sections include examples of more ad vanced calculations Mixed Calculations Example 256 378 223 2 3 2 5 24 36 You Press You See 256 378 634 223 411 2 3 945 3 2 5 378 12 24 402 12 36 366 12 ...

Page 8: ...tiplication the first value you enter is the constant For addition subtraction and division the second value you enter is the constant Constant You Press You See 2 2 4 8 16 32 6 3 6 9 15 21 5 50 5 45 40 35 2 48 2 24 12 6 ...

Page 9: ...ercentage Example 20 of 720 is 144 Add On Example 30 added to 540 is 702 Discount Example 800 discounted by 20 is 640 You Press You See 720 20 144 You Press You See 540 30 702 You Press You See 800 20 640 ...

Page 10: ...10 Reciprocal Example 1 8 0 125 Exponent Example 7 6 117649 Square Example 4 2 16 You Press You See 1 8 0 125 You Press You See 7 117 649 You Press You See 4 16 ...

Page 11: ...play with the number to show that a val ue is stored in memory To add a value to memory enter the number or calculation you want to add then press M The calculator totals the current cal culation and adds that value to memory To subtract a value from memory enter the number or calcula tion you want to subtract then press M The calculator totals the current calculation and subtracts that value from...

Page 12: ...12 Example 2392 576 73 64 61582 786 432 You Press You See ON C MC 0 786 M M 786 432 M M 432 2392 M 2 392 576 M 2 968 MR M 354 M 8 38418079 73 M 64 61581921 ...

Page 13: ...ts Handle the calculator gently and carefully Don t drop it Keep the calculator away from dust and dirt Wipe the calculator with a damp cloth occasionally to keep it looking new Modifying or tampering with the calculator s internal compo nents can cause a malfunction and invalidate its warranty If your calculator is not performing as it should take it to your lo cal RadioShack store for assistance...

Page 14: ...crewdriver to remove the two screws on the back cover of the calculator then lift off the cover 2 Gently pry out the old battery Warnings Dispose of the old battery promptly and properly Do not bury or burn it Do not allow children to play with the battery Swallowing a button cell battery can be fatal 3 Position the new battery in the battery compartment so the positive side is up 4 Replace the ba...

Page 15: ...ing Temperature 32 to 104 F 0 to 40 C Dimensions HWD 611 16 451 64 119 64 Inches 17 12 2 3 3 cm Weight with Battery 6 7 oz 190 g Battery Life About 3000 Hours Specifications are typical individual units might vary Specifica tions are subject to change and improvement without notice ...

Page 16: ...n the event of a product defect during the warranty period take the product and the Ra dioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option unless otherwise provided by law a correct the defect by product repair without charge for parts and labor b replace the product with one of the same or similar design or c refund the purchase price All replace...

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