Scientific Calculator With Normal/Gaussian Distribution

Category	Price	Seller	Device
Education	Free	MODULAR Software & Services GmbH	iPhone, iPad, iPod

One tail, middle, two tail and cumulative density functions (probabilities) can be calculated together with the raw frequency function.

You may enter directly Z values referred to N(0,1), or X values referred to a generic N(m, s).

In case of X values, the values for m=mean and s=standard deviation are also required. If Z values are entered, X values are computed according to m and s and the other way around.

F-Graph also works as a scientific calculator. You may enter the calculation clicking on the buttons of the application pad or directly directly enter the expression as text. Press = to perform the calculation. The calculator supports multiple level of parentheses. A parenthesis is automatically appended when a function button is pressed. You will have then to enter the argument and the closing brace.
Supported functions:
ln(X) logarithm base e
log(X) logarithm base 10
log2 logarithm base 2
exp(X) e to X
rtod radians to decimal degrees
dtor decimal dgress to radians
sqrt(X) square root of X
nthroot(X, N) Nth root of X
pow(N, X) N to X
all common trigonometric functions. Arguments are entered and returned in radians