CrunchJr is a powerful computational engine available for 99¢ for iPhone, iPad, and iPod/Touch.  It is augmented by a large selection of MiniApps.  Users can employ any of the 250+ MiniApps (Quick-mode), or use the more general interface (PowerUser-mode) to address a very wide variety of computational needs.  PowerUser-mode offers a selection of 300+ functions which can be combined with variables (with multiple values for each) to build a computation.  In addition to the obvious functions (e.g., Sqrt, Sin, Cos, ...), many special functions are available for a wide variety of fields – including Fitness/Health, Financial, Solvers, Integration, Physics, Dates, Geometry, Complex Arithmetic, and some simple Statistics.  These capabilities are supported by a set of 200+ constants, as well as a collection of 150+ helpfiles, tables, and reports (some general, some mathematical/scientific, and some unusual).

Internet access is not required.  The information on this web site is a small subset of the internal documention in the App.  Click the AppStore icon to visit the iTunes store, or click on an item below to explore further.

Computational Stories
(Screen Shots)
  Beginner's Tour
Introduction       How It Works       Advanced Features
Domains       MiniApps List       MiniApps Details
Function Categories       Function Prototypes       Function Details
Constant Categories       Constant Values       Constant Details
Tables and Reports      

A random sampling

Quadratic, Cubic, Quartic
Integration       LCM, GCD
Distances       Amdahl's Law
e = mc²       Pythagorean
N Equations in N Unknowns
. . .  33 more
Dollars & Sense
12 Payoff Stategies
IRA Profiles       Refinance
Bill Split, Tips       Mortgage Attrs
Mileage ($) Tracking       Price Per
Effective, Nominal Rates
Present, Future Value
Health & Fitness
Calories Burned (38 workouts)
Target HeartRates       BMI
Heat Index       Windchill
Race-Pace, -Time       Fitness Tests
Aerobic Points Earned
Math Stuff
Trig (the 21 usual suspects + 1)
Factoring       Binomial(4)
Alternate Bases (2-36)       Bit Count
Complex Arithmetic(12)       Factorials
Normalize(3), Fibonacci, Max, Min
Summations(11), Series(7), Stats(5)
Cube Root, Mod, Inverse Mod
Sqrt, Exp, Log, Random(2)
. . .  72 more
Other Categories, Etc
250+ MiniApps
150+ HelpFiles, Tables, Reports
Physics(34)       Matrix(13)
Geometry(73)       Vector(14)
Group Data(36)       Colors(4)
Statistics(5)       Roots(8)
Temperatures(10)       Dates(12)
Intersecting Shapes(14)
. . .  yada, yada, yada
Dice       Easter Date
Three Doors       Prime Numbers
Math Trivia       Factorials
Roman Numerals       Phonetic Alphabet
Periodic Table       Chemical Elements
CrunchJr Tour       Search
History Replay       Auto-expansion
On-the-fly error detection

qbar = (omega–1.73)*(Cos(omega–Sqrt(x+omega/higgs))–(x+PI/2))  

Enter value(s) for  omega, x, higgs:

qbar omega x higgs
    ------    -------    ---    -------  
  1)    –7.124224   5.7    0.4478    43.1 
Mdn   2)    –7.037745   5.7    0.4478    57.8 
  3)    –6.983573   5.7    0.4478    73.11 
  4)    –11.06099   8.31    0.4478    43.1 
  5)    –11.25555   8.31    0.4478    57.8 
Min   6)    –11.38006   8.31    0.4478    73.11 
Max   7)    –3.391345   3     0.4478    43.1 
  8)    –3.403236   3     0.4478    57.8 
  9)    –3.410577   3     0.4478    73.11 

OpCount:    630
CP-Time:    27µsec