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Basic Troubleshooting

Try following these steps if you are having a problem with one of Interlocken's Mobile Applications:

  1. View the App Video
    Each App Video can be found near the top of its product page.
  2. Restart your device.
    Many issues can often be resolved with this simple step.
  3. Re-download the App. from the App. Store.
    You will not be charged for re-downloads once you have purchased the App.
  4. Email us at: Email Support
    We will respond within 24 hours.

     

 
 
Where are the scientific & options views?
Paper Calc has two views to the left and right of the main keypad. If you touch and slide the keypad from left-to-right you will get to the scientific keypad. If you slide from right-to-left you will see the options page. In the top right corner of the options page is a button which will show a full-screen view of the paper tape.
Where are the brackets?
Paper Calc was designed as a simple chain calculator for short calculations. For example: What is the sin of 45 degrees? What was my gas mileage (330 miles / 19.2 gals). It was also designed to give an exact history of what was calculated in the past. For people who need this simplicity, brackets are actually a hindrance.
How do I use the percent (%) key?
There are two ways to use the % key:
  1. Obtain the % of a number:
    - Press '200 % 5 ='
    - Answer will be '10'
    - PaperCalc took 5% of 200.
  2. The % of a number is used in the operation on the number:
    - Press: '200 - 5 % ='
    - Answer will be '190'
    - PaperCalc subtracted 5% of 200 from 200
What are the three display formats for?
People doing general math want as many decimal places as possible (float), Someone doing monetary math wants a fixed number of decimal places (fix.n), and an engineer generally wants a power that is a multiple of 3 (eng^3). Easily access the three different formats by pressing the display format key on the main keypad.
How do I make my keys larger?
Paper Calc has a very powerful feature for sizing your keys to your needs. Just touch the calculator's LCD display and move it up or down to re-size the keys.
I see a button for printing, but it doesn't seem to work.
Paper Calc supports AirPrint which allows an iOS device to print directly to a printer. The printer must be a wireless printer on the same local network as your iOS device. Also, the wireless printer must be an AirPrint printer. For example HP's printer use the term 'ePrint capable'.
I have a great suggestion. Should I send it?
Absolutely. We want to hear as many thoughts, suggestions, corrections as possible. We will respond almost immediately. You can send an email by clicking here: Email Support.