Below is an inverse cosine calculator (or arccos calculator), which calculates an angle from the ratio from the cosine function. […]

Below is a standard deviation calculator, which will calculate the standard deviation from a list of numbers. Input numbers (including […]

Use this bitwise NOT calculator (or complement calculator) to flip every bit in an integer. Enter a number and see […]

Here is an inverse secant calculator (or arcsec calculator), which calculates an angle from the ratio from the secant function. […]

Need a specific Fibonacci number or want to see the sequence? This Fibonacci sequence calculator generates any Fibonacci number up […]

On this page is a percent increase calculator. Enter a starting amount and an ending amount and the tool will […]

How much did household income grow over the years - and how did it change distributionally? Below is a tool […]

Did "all the income gains go to the top"? Below is a tool to test that claim: compare real individual […]

This future value calculator models how an investment might grow over time. It handles simple compounding, or more complex scenarios […]

Hey folks! Solidly into Fall here in New Hampshire. Pretty much (cc: our dogwoods) all of the non-evergreens have started […]