PCalc on the iPad also takes advantage of iPhone OS’s new pop-over interface elements, letting you access settings, constants, and conversions without having to switch to a different screen. In addition to being able to display more keys (including the dedicated undo and redo buttons mentioned above), the iPad’s larger screen allows keys to be significantly larger. In total, there are nearly double the number of conversions as before, and the Conversions and Constants menus now conveniently display recently used options at the top.Ĭonvert It: PCalc provides more than 150 conversion functions, easily accessible on the iPad via a pop-over.įor iPad owners, the most-welcome change in version 2.0 is likely support for the iPad’s larger screen. Since our original review, TLA Systems has added many new conversions within existing categories, as well as new currency and cooking categories. The Ultimate Answer), as well as a conversion feature that lets you quickly convert the current number using scores of functions, in categories ranging from angle to fuel efficiency to weight. PCalc continues to provide convenient access to commonly used scientific and mathematical constants (including, of course, While you can make such adjustments by delving into the app’s settings screens, the easiest way is, again, to swipe: down the display to add a line, or up to remove a line. You can have up to four lines, and the onscreen keys shrink or grow to fit the chosen display size. You can also now change the number of lines in PCalc’s display-more lines are especially useful in RPN mode. You can also undo and redo multiple actions: on an iPad, you get dedicated Undo and Redo buttons, and on all devices, you can shake to undo or simply swipe your finger across the screen-right to undo or left to redo (although these gestures strike me as backwards). Thanks to iPhone OS 3, you can now copy results from the display, and paste numbers into the display for use in calculations.
(The iPad’s larger screen accommodates more keys, so there’s less need for different key layouts with differing subsets of possible keys.) You can also choose one of six (on the iPhone) or five (on the iPad) font styles for the “LCD,” and any of six key-click sounds.
For example, you can now choose from among nine visual themes and a slew of different key layouts-three vertical and three horizontal on the iPad, and seven vertical and eight horizontal on the iPhone. There’s a time-stamped virtual tape for revisiting (or even e-mailing) your calculations, as well as a register (called the stack in RPN mode) that displays memory contents and decimal-, hex-, octal-, and binary-base versions of the current number.īut TLA Systems has updated PCalc more than a dozen times since our original review, and in addition to various mathematical and operational tweaks and improvements-many of which address minor complaints I had with version 1.0.2-those updates have provided an impressive amount of additional functionality. RPN (Reverse Polish Notation) mode, and more. You get all the standard scientific-calculator fare, including inverse, roots, exponents, trigonometric functions, nested operations, an The current version of PCalc includes all the number-crunching goodness of the version we reviewed back in 2008.
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Given those improvements, and the fact that Apple mysteriously omitted a calculator app from the iPad, PCalc and and its free sibling, PCalc Lite, are more appealing than ever. In the intervening year and a half, TLA Systems has dramatically improved the iPhone app, and with version 2.0, PCalc now includes an iPad-native interface in the same package. Reviewed PCalc 1.0.2 back in 2008, it was my favorite iPhone scientific calculator, offering all the features I’d ever need with an interface that actually bettered
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