Category | Price | Seller | Device |
---|---|---|---|
Education | $0.99 | Knign LLC | iPhone, iPad, iPod |
Don't spend $100+ on an old fashioned graphing calculator. Get all these features (plus more added with every FREE update):
Algebra and Trigonometry:
-Functions for calculating the absolute value, floor, ceiling, gcd, fractional part, integer part, and more
-Nestable functions: gcd(4,gcd(14,6))
-Scientific Notation with 14 digit precision: the highest possible machine level precision for iPhone
-Standard trig functions (sine, cosine, cosecant, secant, cotangent)
-Hyperbolic and inverse trig functions
Statistics:
-Min, max, mean, standard deviation, variance
-Easy to use list syntax: stdDev({1,2,3,2})
-Create custom lists: seq(rand*X,X,1,5)
Calculus:
-Calculate the area under a curve: fnInt(2X, X, 1, 2)
-Find a point derivative: nDeriv(X^2+X, X, 0)
-Solve for zeros: solve(X^2 - 2, X, 1.5)
-Complex number operations: conj(), real(), imag()
Linear Algebra:
-Matrices use built in operators, like "*" for multiplication: [[1,2][3,4]] * [[5,6][7,8]]
-Use built-in functions on matrices: sin({1, 2, 3})
-Get the dimensions of a matrix: dim([[4, 5, 6][7, 8, 9]])
Extras:
-Email your calculation history
-Get support online at RKalk.com, or email us directly: [email protected]
The RK-83 grapher is intuitive, powerful, and easy to use. The features you'll love:
-Touchable panning and pinch zooming
-Vibrant multi-colored graphs
-The best graph tracing you've ever seen
-Full screen shots
Version 1.2 is available now! It adds the much requested degree/radian mode! It's faster and more powerful than ever!
New in Version 1.2:
-Create and modify lists: sortA(seq(rand,X,1,10))
-User-defined functions: func(X, X^2)->G
-While loops: while(not(isPrime(X)), X+1->X)
-Degree and radian angle modes (in Settings below the Graph button)
-Quickly adjust your graph scale for "Degree Mode" with the new "ZoomTrig" button
-Faster graphing
Visit www.rkalk.com for documentation, including video tutorials, sample problems, and function reference.
Everytime I do anything it crashes. Come on really. Im using iOS 5 and have the iPhone 4 there should be no reason for crashes
Nothing like ti 83, if you put in an equation it can't solve it. Some greedy person is making a fortune off this piece of work
This was ok with ios4. With ios5, as soon as you click MATH and anything else, it crashes. Clicking "support" gets a "404 not found" message. I emailed over a month ago and got no reply.
It works great! I would just like to see an update that clears the input space after calculation instead of copying the previous one, and to copy the previous answer when an operation key is first pressed (like Ans+ on a ti). Aside from that I have no major complaints.
This app crashes when trying to use the Math functions. The support page no longer exists. Don't buy.
Same problem as others; crashes with iOS5 when using Math functions. It won't open the Y= editor anymore either. No support to be found it seems. It still performs basic functions, but you can just use the built in calculator for that. Not worth it. Extremely dissatisfied.
Please add a table. Also, misleading desc. Does not have all and more functions than a ti 83 calculator.