20 Most Recent HP 20s Calculator Questions & Answers

Here is a link to Samson Cables (in Utah) that has some English copies for sale. Samson Cables HP 20S Scientific Calculator Owner Manual Details

Hi,
I have not been able to find one in English, anywhere. I only found one in Spanish on the HP Spain website. If you want the link, post here and I will be happy to give it to you. Alternatively, you can look for it yourself on HPSpain.
And if you do not post back, I will understand that you ain't interested.

Bye.

Result display FIXTo change the number of decimal digits, press LEFT SHIFT (Blue) key then press (. In doing so you are setting your result display to FIX. Specify the number of digits you want by pressing 0, 1,2,3.., or 9Result display ENGineeringPress LEFT SHIFT (Blue) key, then press ) key. Specify the number of decimal digits in the mantissa by pressing one of the number keys.Result display SCIentificPress RIGHT SHIFT (orange) key followed by (press one of the digit keys (0,1,2,...,7,8,9) to specify the number of digits.

There is shop somewhere in Pennsylvania that repairs HP calculators. The name is FixThatCalc.com.

Result display FIXTo change the number of decimal digits, press LEFT SHIFT (Blue) key then press (. In doing so you are setting your result display to FIX. Specify the number of digits you want by pressing 0, 1,2,3.., or 9Result display ENGineeringPress LEFT SHIFT (Blue) key, then press ) key. Specify the number of decimal digits in the mantissa by pressing one of the number keys.Result display SCIentificPress RIGHT SHIFT (orange) key followed by (press one of the digit keys (0,1,2,...,7,8,9) to specify the number of digits.

Near the 0 key, the calculator has the markings dot forward slash comma in BLUE. Thus to change the decimal mark from dot to comma or from comma to dot, press the LEFT SHIFT Blue key, followed by 0. The radix mark will toggle from one to the other.

Please use the following link to download the manual for your calculator.
http://www.devicemanuals.com/guide/Calculator/HP/HP-20s-Scientific-Calculator-Owner's-Manual-==TVRFME5UWTE=.html

Resetting the calculator using the keyboard To halt the calculator and reset the keyboard, follow the procedure below:

1. Press and hold the [C] key.
2. Press and hold the third key from the left on the top row.
3. Release both keys at the same time.
4. The calculator will now display "0.00" (if the number of decimal places is set to two.)

To completely reset the calculator and erase all user memory, follow the procedure below:

1. Press and hold the [C] key.
2. Press and hold the first key from the left (the N key) and the first key from the right (the sigma +) on the top row. Release all three keys at the same time.
3. You should see "ALL CLr" on the display.
4. Pressing the [C] key will clear the message.
5. The calculator will display "0.00."