1/25/2024 0 Comments Download pcalc![]() If you regularly use a scientific calculator, you should definitely check out PCalc, on any platform. This shareware app is also available as a cheaper (and very similar) iPhone and iPad app, and the Mac version has been updated to add more of its features. PCalc even comes with a virtual tape, so you can look through all your past calculations, and you can resize and skin your calculator with a variety of themes. Download & install PCalc - Printing Calculator APK - Desk Calculator APK - Version: 3.0.22 - lucasoft - Development of. You can also write your own functions and conversions, maintain multiple calculators (all with different states), and use PCalc's slightly lower-powered Dashboard widget for quick calculations. Scientists, mathematicians, or just serious students will find quite a few bonus features comparable to those found in standalone programmable scientific calculators which PCalc's interface mimics-including quick one-key conversions, constants organized by field (from astronomical to physicochemical), an optional RPN mode that matches modern calculators, and decimal, hexadecimal, octal, and binary modes. We’ll look at the Binomial CDF function in the next post.PCalc is a high-powered scientific calculator that goes beyond the features found in the built-in Mac OS scientific calculator. I want to use it as the starting point for a more complicated function, the cumulative distribution function, which will need to keep track of some of those intermediate calculations. ![]() I have further plans for this function.The registers are there to be used, and by keeping all the intermediate calculations in separate registers, I’m able to make the logic of the function easier to follow.If you look through the function definition, you’ll notice that I’m using up a lot of registers-more than is truly necessary to run out the calculation. The function is called “Binomial PMF.” The PMF stands for probability mass function, which is standard terminology for the function that returns the probability of a random variable equaling a discrete value. 5\),Īny entries on the stack “above” the three inputs will still be there after the function runs. The PCalc function I wrote to implement the function starts with three numbers on the stack, 1 say \(n = 5\), \(N = 10\), and \(p =. ![]() The binomial probability, then, is a function of three inputs, \(n\), \(N\), and \(p\), that yields one output. It includes an optional RPN mode and multi-line display, a choice of button layouts, an extensive set of unit conversions and constants, a paper tape, multiple undo and redo, engineering and scientific notation. The first term in the formula is the binomial coefficient, which is defined as PCalc is the powerful choice for scientists, engineers, students, programmers, or indeed anybody looking for a feature rich calculator. Older versions will no longer see updated rates because the European Central Bank added a new currency (the Icelandic Krna) to their rates file and, due to a bug on my part, it caused these old versions to crash after they downloaded it. The probability of \(n\) successes in those \(N\) trials is PCalc 4.5.4 is available here.It's a small update that fixes a problem updating the currency conversion rates. For each trial, the probability of success is \(p\). There are only two possible outcomes of each event, which we’ll call success and failure, although you could give them any names you like. Imagine there are \(N\) independent trials of some event. The function calculates a probability from the binomial distribution. In the meantime, his post inspired me to clean up and finish off a PCalc function that I’d half-written some time ago. I haven’t installed iOS 12 yet (I usually wait a few days to let Apple’s servers cool down), but I expect to use Federico’s advice to make a few PCalc shortcuts when I do. Over the weekend, I read Federico Viticci’s excellent post on using iOS 12 Shortcuts to access PCalc. Next post Previous post PCalc binomial functions
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