I performed lots of tests and put some extra efforts on it in order to make the application more comfortable for Android devices. Anyhow I know there is always room for improvements, so please don't hesitate to contact me, if you experience any kind of problems or if you have suggestions to it.
About the calculators features: it supports basic arithmetic operations, trigonometric and logaritmic functions, binary, octal and hexadecimal calculations and comes along with 40 constants. Many features are rather self-explanatory as the calculator works pretty similar as a usual calculator.
Inv | press this key for using second, invers and hyperbolic functions or for getting the second set of constants |
Con | using this key you can recall one of the 40 constants |
Mod | the calculator support different modes. use ... |
Mod 0 | for decimal calculations (default) |
Mod 1 | for binary calculations |
Mod 2 | for octal calculations |
Mod 3 | for hexadecimal calculations |
Mod 4 | for trigonometric calculations in degrees (default) |
Mod 5 | for trigonometric calculations in radian |
Mod 6 | for trigonometric calculations in grad |
Ac | clear all |
C | clear last number |
Bs | remove last digit |
EE | add an exponent |
Ran | returns a random number between 0 and 1 |
¾ | key for fractional arithmetic |
Hardware key | Calculators key | Description |
0 1 2 3 4 5 6 7 8 9 | 0 1 2 3 4 5 6 7 8 9 | digits |
. | . | decimal point |
e | EE | exponent |
s | ± | sign |
# | ¾ | fraction |
+ - × ÷ | + - × ÷ | basic arithmetics |
( ) | ( ) | brackets |
a | Ac | clear all |
b | Bs | backspace |
i | Inv | second, invers and hyperbolic functions |
c | Con | constants |
m | Mod | modes |
= ↵ | = | result |
The following table lists positions, symbols an their meaning:
Position | Symbol | Bedeutung |
1 | iF | Invers or second function |
1 | H | Hyperbolic function (only trigonometric functions) |
1 | iH | Invers hyperbolic function (only trigonometric functions) |
1 | C | Query constant |
2 | M | Memory contains a value |
3 | D | Calculations based on decimal system; enter angles in degree |
3 | R | Calculations based on decimal system; enter angles in radian |
3 | G | Calculations based on decimal system; enter angles in grad |
3 | B | Calculations based on binary system |
3 | O | Calculations based on octal system |
3 | H | Calculations based on hexadecimal system |
3 + 2 × 4 = 11 | ^{ }_{ } | |
2^{3} - ln 4 = 6.61370... | ^{ }_{ } | |
3.25 × 10^{15} ÷ e^{π} = 1.4044... × 10^{14} | ^{ }_{ } | |
-¼ × sinh^{-1} 8! = -2.8244... | ^{ }_{ } | |
T_{0} ÷ ( 2 + sin^{-1} 1 ) = -2.9690... | ^{ }_{ } | |
100101_{Bin} ÷ 11_{Bin} = 1100 | ^{ }_{ } | |
1/3 + 1/2 × 4/7 = 13/21 | ^{ }_{ } | |
A1F_{Hex} Or 1D1_{Hex} And B0B_{Hex} = B1F | ^{ }_{ } |
Con 0 | e | Elementary charge | 1.602176462e-19 | ||
Con 1 | μ_{0} | Mag. constant | 12.566370614e-7 | ||
Con 2 | ε_{0} | Electric constant | 8.854187816e-12 | ||
Con 3 | c | Speed of light in vacuum | 299792458 | ||
Con 4 | G | Newtonian constant of gravitation | 6.67428e-11 | ||
Con 5 | g_{n} | Standard acceleration of gravity | 9.80665 | ||
Con 6 | N_{A} | Avogadro constant | 6.02214179e23 | ||
Con 7 | k | Boltzmann constant | 1.3806504e-23 | ||
Con 8 | R | Molar gas constant | 8.314472 | ||
Con 9 | σ | Stefan-Boltzmann constant | 5.6704e-8 | ||
Con EE | T_{0} | Absolute zero | -273.15 | ||
Con . | V_{m} | Molar volume of ideal gas | 22.413996 | ||
Con π | P_{n} | Standard atmosphere | 101325 | ||
Con e | h | Planck constant | 6.6260695729e-34 | ||
Con × | Λ | Cosmological constant | 2.0766433e-43 | ||
Con ÷ | ћ | Reduced Planck constant | 1.054571726e-34 | ||
Con 1/x | α | Fine-structure constant | 7.297352533e-3 | ||
Con + | m_{e} | Electron mass | 9.10938188e-31 | ||
Con - | r_{e} | Classical electron radius | 2.81794033e-15 | ||
Con ± | m_{p} | Proton mass | 1.67262158e-27 | ||
Con^{-1} 0 | m_{n} | Neutron mass | 1.6749286e-27 | ||
Con^{-1} 1 | Y_{e} | Electron gyromag. ratio | 1.760859708e11 | ||
Con^{-1} 2 | R_{∞} | Rydberg constant | 1.0973731534e7 | ||
Con^{-1} 3 | E_{R} | Rydberg constant times c in Hz | 3.289841960360e15 | ||
Con^{-1} 4 | f_{R} | Rydberg constant times hc in eV | 13.6051413843 | ||
Con^{-1} 5 | a_{0} | Bohr radius | 0.52917721086e-10 | ||
Con^{-1} 6 | μ_{B} | Bohr magneton | 9.2740091523e-24 | ||
Con^{-1} 7 | μ_{e} | Electron mag. mom. | -9.2847637723e-24 | ||
Con^{-1} 8 | g_{e} | Electron g factor | 2.002319304386 | ||
Con^{-1} 9 | μ_{N} | Nuclear magneton | 5.05078324e-27 | ||
Con^{-1} EE | μ_{P} | Proton mag. mom. | 1.41060761e-26 | ||
Con^{-1} . | Y_{p} | Proton gyromag. ratio | 2.675222099e8 | ||
Con^{-1} π | μ'_{p} | Shielded proton mag. mom. to Bohr magneton ratio | 1.520993129e-3 | ||
Con^{-1} e | Y'_{p} | Shielded proton gyromag. ratio over 2 pi | 42.576375 | ||
Con^{-1} × | m_{u} | Unified atomic mass unit | 1.66053873e-27 | ||
Con^{-1} ÷ | F | Faraday constant | 9.6485339e4 | ||
Con^{-1} 1/x | Φ_{0} | Mag. flux quantum | 2.06783364e-15 | ||
Con^{-1} + | E_{h} | Hartree energy | 4.3597482e-18 | ||
Con^{-1} - | c_{1} | First radiation constant | 3.7417749e-16 | ||
Con^{-1} ± | c_{2} | Second radiation constant | 1.43876912e-2 |