A cool new app Scientific Calculator 3D Free
★★★ Introducing Scientific Calculator 3D Free ★★★
Description:
“Scientific Calculator 3D Free” is a powerful math tool for Android consists of 5 calculators. “Matrix Calculator”, a tool to calculate the decompositions and various operations on matrix, “Equation Solver” an instrument capable of solving equations of degree n, “Graphing Calculator” a real scientific graphing calculator can draw graphs in 2D and 3D, “Currency Converter” a currency converter always updated with the new exchange rates and “Unit Converter” a small units converter. In addition we find a comfortable Periodic Table of Elements.
Features in detail:
Matrix Calculator:
–Derived Quantities
Determinant
Rank
Inverse
PseudoInverse
–Decompositions
Cholesky decomposition
LU decomposition whit pivoting
QR decomposition
SVD  Singular Values decomposition
Eigenvalues  Eigenvectors
–Linear Systems
Linear Systems M N
Graphing Calculator:
–Sample expressions
variable evaluation: pi
function evaluation: sin(0)
variable definition: a=3.5
function definition: f(x)=x^21
parentheses: (1x)^2
–Logarithms and power
sqrt(x): square root; x^0.5
cbrt(x): cube root; x^(1/3)
exp(x): exponential; e^x
log(x), ln(x): natural logarithm
log2(x), lb(x): binary logarithm
log10(x), lg(x): decimal logarithm
log(base,x): arbitrary base logarithm
–Trigonometric  radians
sin(x), cos(x), tan(x)
asin(x), acos(x), atan(x)
–Trigonometric  degrees
sind(x), cosd(x), tand(x)
asind(x), acosd(x), atand(x)
–Hyperbolic
sinh(x), cosh(x), tanh(x)
asinh(x), acosh(x), atanh(x)
–Other
gcd(x,y): greatest common divisor
comb(n,k): combinations
perm(n,k): permutations
min(x,y), max(x,y)
floor(x), ceil(x)
abs(x): absolute value
sign(x): signum
rnd(): random value from [0,1). rnd(max): random value from [0, max).
gamma(x): (x1)!
mod(x,y): modulo
–Complex numbers
i or j is the complex base. Example:
ii
(1+i)^2
e^(ipi)
–Operators

 × ÷ basic arithmetic
^ power
% percent
! factorial
 × ÷ basic arithmetic
modulo
√ square root
’ first derivative
–Binary, octal, hexadecimal
Value converter in binary, octal or hexadecimal input prefixing respectively 0b, 0o, 0x, in decimal.
binary: 0b1010
octal: 0o17
hexa: 0x100
–Derivative
It is possible to compute the first derivative of a function with one argument using the prime notation: log’(5).
The prime mark (quote) must appear immediately after the name of the function, and must be followed by openparentheses.
The derivative may be plotted e.g. sqrt’(x).
To compute the derivative of an expression you must define the expression as a named function.
Eg f (x) = x ^ 2 + x, after insertion, type f '(x) to display the graph of the derivative.
–Multi plot
To plot multiple functions on the same 2d graph, simply enter them on the same line separated by “;”.
–Special Function
Limit Calculator
Indefinite Integrals
Derivative
Definite Integrals
Taylor Series
Tangent Line
ArcLength & SurfaceArea
Formula Tables
–Graph (MultiPlot up to 6 functions)
Graph of parametric functions
Graph in polar coordinates
MultiPlot 3D
Link to Free app: http://play.google.com/store/apps/details?id=it.bisemanuDEV.mathtoolsfree
Link to Paid app: http://play.google.com/store/apps/details?id=it.bisemanuDEV.mathTools
Requirements: Android 2.1 and up
I recommend you to download this amazing and scientific app.
Enjoy!!