Example:

• Enter "help payment" to get help on the "payment" command.
• Enter "120000 .07 30 payment" to show the mortgage payment you would pay for a 120K loan at 7% amortized over 30 years.
• Enter "bin 1010001 dec" to convert binary 101001 into decimal. (note that the input base will always revert back to a default base-10.)