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Unc : A Units Calculator

Unc : A Units Calculator
  • #: 247875
  • Price: free ($0.00) In Apple Store
  • Category: Utilities
  • Updated: 2010-11-10
  • Current Version: 3.2.17
  • 3.2.17
  • Size: 0.90 MB
  • Language: English
  • Seller: Mark Nudelman
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 4.0 or later.
  • © 2010 Greenwood Software
  •  Add to Favorite apps



Unc is a scientific RPN calculator with completely integrated support for numbers containing units. Far more than simply a units converter, Unc allows you to perform arithmetic operations on numbers containing units, and different units can be freely mixed in calculations.

Scientists and engineers know that using units in all calculations avoids mistakes and provides a double check on the consistency of the calculations.

Here are just a few examples of the types of calculations you can do with Unc:

* Divide any unit of distance by any unit of time to get the speed.

The result could be in miles per hour, or feet per second, or meters per minute, or any other such combination of units.

* Multiply any unit of speed by any unit of time to get the distance.

* Multiply any unit of distance by any other unit of distance to get the area.

For example, multiply feet by yards, or miles by miles, or meters by furlongs.

In one step, convert the result to any unit of area, such as acres or hectares.

* Divide any unit of mass by any unit of volume to get the density.

Divide pounds by gallons, or kilograms by liters, or milligrams by tablespoons.

* Square a distance to get an area. Multiply an area by a distance to get a volume. Take the cube root of a volume to get a distance.

You get the idea! You can perform any arithmetic operation on any quantities containing units. Unc provides the ultimate flexibility in handling units.

Unc provides many standard arithmetic operations, including addition and subtraction, multiplication and division, reciprocal, square, cube, square root, cube root, exponentiation, logarithms, trig and inverse trig functions (in degrees or radians) and hyperbolic trig and inverse trig functions. Most of these operations can work on numbers with units.

Unc comes with more than 130 built-in units. And if you have a need for a unit that isn't in this list, you can easily define new units. You can use these new units alone or in combination with other units just like the built-in units.

Unc is also a full featured integer calculator supporting decimal, hexadecimal, octal and binary input and display, a word size of 8, 16, 32, 64 or 128 bits, signed or unsigned operation, and a full set of integer operations, including and, or, xor, not, modulus, arithmetic shift, logical shift, circular shift and byte swap.

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Rated 5/5 based on 2 customer reviews.


5/5 stars

Finally! A fantastic scientific calculator with support for units and physical constants

My all-time favorite calculator is the HP48sx. It was the perfect calculator for a physics student like myself, and I couldn't have made it through grad school without it. I used it for years until the off/on button finally wore out. One of the best aspects of the HP48sx was its support for attaching units to numbers, which made unit conversions and dealing with physical constants incredibly easy. This is the first iOS calculator app I've come across that replicates the functionality and spirit of one of those HP48 calculators without slavishly being a clumsy-to-use HP emulator. Scientists, engineers, and students of those disciplines should definitely check out this app!

5/5 stars

Excellent basic scientific/engineering calculator

This is a great basic RPN calculator (like an HP). It also does unit conversions very well including complex unit conversions and unit reductions. Excellent for back-of-the-envelop calculations for a student or engineer in the field. I find this more useful than stand-alone unit converters.


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