Read a 4-band resistor from its colours: two digits, a multiplier and a tolerance band.
Bands
In the E-series
E12 / E24 preferred values nearest to the nominal reading.
Paste a list of numbers and see whether it fits an arithmetic, geometric, Fibonacci-like or polynomial rule, with the next term and an honest note on how much the fit is worth.
Union, intersection, difference, symmetric difference and unique elements over two number lists, sorted ascending with a count for every result.
Solve the internal rate of return for any cash-flow table with Newton-Raphson and a bisection fallback.
Monthly payment plus a full amortisation table with principal, interest, extra payments and the running balance.
Extract or drop pages and download the result.
Pull the text layer out of any PDF.
Read text aloud with the voices on your device.
Record, trim and download clips locally.
