Converts a number from any base to any other, from base 2 up to base 36. Binary, octal and hex are the usual ones, but base 7 and base 36 work the same way.
By CalcPlex.
How to install it
- Download the program with the button above. You'll get a .tns file, the file type TI-Nspire calculators use.
- Open nspireconnect.ti.com in Chrome on a computer or Chromebook, and plug your calculator in with its charging cable.
- Choose File Transfer, then To Calculator, then From Computer, and pick the .tns file you just downloaded.
- When it lands, the calculator shows a prompt. Choose Open to jump straight into it.
It sits in My Documents afterwards, so you can reopen it any time.
TI's web app only supports the CX II and CX II CAS. If you have an original CX, or you already use the TI-Nspire Student Software, sending the file through that works the same.
Using it
Open Base Converter from My Documents. It has three fields: Number, From base and To base.
Pressing enter while a field is still blank jumps to it, so converting hex FF to binary is F, F, enter, 16, enter, 2, enter. Digits past 9 are letters, typed in either case.
The answer appears under "In base 2:" or whichever base you asked for. When neither base is 10, the base-10 value shows under it as well.
After each answer the number stays highlighted. Type the next one straight over it and press enter to convert between the same two bases again.
Fractions and negatives
A decimal point works in any base: 12.75 in base 16 is C.C. When the digits never end, the repeating part goes in parentheses, so 0.1 in base 2 is 0.0(0011). Negative numbers keep their sign (−42 in binary is −101010), and from base 10 you can use the EE key for a power of ten.
The Nspire's own ►Base2 and ►Base16 only handle whole numbers in bases 2, 10 and 16. This one runs the same on CAS and non-CAS models.