Nine of the commands have three parts: the command and two arguments.
#ALIMENTAR O PCALC HOW TO#
We’ll discuss how to set the argument in a bit. The trig, log, and exponential commands work this way, as does the Clear command. Seventeen of the commands have two parts, in which you have to choose both the command itself and a single argument. These are typically commands that set the calculation mode, like the Decimal Mode command we saw above or the Radians Mode command. Seven of the commands have only one part-the command itself with no arguments. Here they are, with descriptions, as they appear in the scrolling list you see as you construct your function. PCalc gives you 39 commands from which to build your function. You can change these by tapping them, which will take you to a command editing screen we’ll discuss in a bit, and add new commands by tapping the ⊞ key.
PCalc starts you off with two commands: one that puts you in decimal mode (if you weren’t already there) and one that multiplies the current value by the universal constant. Tapping the new function takes you to a screen where you can rename and define it. Tapping that category takes you to a screen where you can rename it and then start defining new functions. Tapping the ⊞ key on this screen will create a new category. As you can see below, I’ve added three categories: Financial 2, Probability, and Weather. You’ll get a ⊞ key in the upper right corner, which will allow you to add new categories. Start by tapping the f(x) key to see the list of function categories and then tap the Edit key in the lower left corner. The creation of user-defined conversions follows almost exactly the same steps and has access to the same set of commands-once you’ve learned how to define functions, you’ll have no trouble defining conversions. In this post, I’m going to focus on creating user-defined functions. We just had to wait for James to figure out how he wanted to implement it. High-end calculators have been programmable since the 70s, so it was only natural to expect that functionality to come to PCalc eventually.
This was not based on any insider knowledge. And the statistical section could use functions for the normal and inverse normal cumulative distribution. Things like present value, future value, and internal rate of return are natural for the financial section. What I’d really like to see, though, is an expansion of these functions. Initially, the additional functions were limited to whatever the developer, James Thomson, gave us. PCalc added an f(x) key in Version 2.6 as a way to access functions beyond those available on the keys. With Version 2.8 just released, you’re going to see its value explode with two new features: user-defined conversions and user-defined functions.
If you followed my advice back in December, you bought PCalc for the ridiculously low price of 99¢ during its 20th anniversary sale 1 and have been using a first-class calculator for the past four months.
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