Factorial Combination Calculator: nCr and nPr Made Easy
How many distinct poker hand are there? What are my chances of hitting a jackpot in the lottery? These all seem like difficult problems initially. … Read More
JSCalc
Factorial Notation Calculator: n! With Full Expansion
In math, there’s something called an exclamation point. It look straightforward, and does big things. It doesn’t shout! Instead, when used with a number, it … Read More
Inverse Factorial Calculator: Find n From n! Value
Factorials are something you probably already know how to do: take any whole number and multiply it by all integer below it, up to number … Read More
Logarithm Addition Calculator: Combine Log a + Log b
Logarithms are typicaly scary and students memorize them without ever understanding how they work. Think about it this way: a logarithm is simply a translation … Read More
Base e Logarithm Calculator: ln(x), e^x, Log Base b
The mathematical constant is e. When mathematics deals with continuous change we use a special kind of number called the mathematical constant, e. Unlike integers … Read More
Wire Antenna Length Calculator: Dipole, Vertical, Loop
So maybe you get frustrated because that first dipole you cut to the textbook’s half-wavelength formula doesn’t quite work like it should. It resonates fifty … Read More
Time To Transfer Data Calculator: File Size Over Speed
So there you sit for 20 minutes, looking at a progress bar that’s hardly budged. “The file manager estimates another three hours,” you think. But … Read More
Dehumidifier Power Consumption Calculator: Watts, kWh, EF
Basement air tends to be damp and thick. To get rid of musty odor, you purchased a dehumidifier. But the electric bill went up. A … Read More
Air Conditioner Power Consumption Calculator (kWh)
You don’t notice summer air conditioning until you get the bill, and the bill always comes after you feel it. There’s something comfortabley about being … Read More
Video Resolution Bandwidth Calculator: Bitrate & GB/Hour
Your live streaming starts great. Then you get complaints from your audience about picture quality. You begin recieveing comments asking why it looks bad, wondering … Read More