A Scientific calculator which can also convert between 20 different categories and contains over 50 constants.

– Calculator Includes
Radians and Degrees
Decimal, Hexadecimal, Octal and Binary
Sine
Cosine
Tangent
Hyperbolic Sine
Hyperbolic Cosine
Hyperbolic Tangent
Inverse Sine
Inverse Cosine
Inverse Tangent
Inverse Hyperbolic Sine
Inverse Hyperbolic Cosine
Inverse Hyperbolic Tangent
Secant
Cosecant
Cotangent
Hyperbolic Secant
Hyperbolic Cosecant
Hyperbolic Cotangent
Inverse Secant
Inverse Cosecant
Inverse Cotangent
Inverse Hyperbolic Secant
Inverse Hyperbolic Cosecant
Inverse Hyperbolic Cotangent
Raise x to the power of 2
Raise x to the power of 3
Raise x to the power of y
Raise 2 to the power of x
Raise 10 to the power of x
Square toot of x
Cubic root of x
nth roo of y
Base 2 Logarithm
Base 10 Logarithm
The natural Logarithm
Euler's number
e to the power of x
Archimedes Constant
Exponential Notation
Factorial
Percentage
Random Number between 1 and 0 (Rand)
Add Tax
Subtract Tax
Calculate Tax

– Unit converter includes
Acceleration: 15 Units
Angle: 11 Units
Area: 14 Units
Astronomical: 10 Units
Currency: 52 Units
Density: 9 Units
Digital Storage: 18 Units
Energy: 10 Units
Force: 6 Units
Length: 9 Units
Illumination: 5 Units
Inductance: 8 Units
Magnitude: 21 Units
Mass: 9 Units
Power: 6 Units
Pressure: 8 Units
Speed: 22 Units
Temperature: 5 Units
Time: 11 Units
Volume: 50 Units

– Constants includes:
Astronomical
Equatorial Radius of Earth (km)
Equatorial Radius of Sun (km)
Mass of Earth (km)
Mass of Sun (km)
Mass of Moon (km)
Mean Earth-Moon Distant (km)
Mean Earth-Sun Distant (km)
Mean Radius of Earth (km)
Mean Radius of Moon (km)
Electromagnetic
Conductance Quantum (S)
Elementary Charge (C)
Magnetic Flux Quantum (Wb)
Mathematical
Archimedes Constant (π)
Rulers Number (e)
Golden Ratio (φ)
Omega Constant (Ω)
Pythagoras Constant (√2)
Physical
Speed of Light (m/s)
Plank Constant (J/s)
Gravitational Constant (m/kg)
Electron Charge (C)
Mass of Electron (kg)
Mass of Proton (kg)
Mass of neutron (kg)