説明 Scientific Calculator 3

Scientific Calculator 3 is an easy to use universal scientific calculator app for smartphones, tablets or other Android touchscreen devices. It evaluates mathematical expressions under consideration of the algebraic convention "brackets before power before point before line calculation".
The rounding of results is adjustable between 5 and 15 digits. Available notations are normal notation (NORM),
scientific notation (SCI) and engineering notation (ENG). Trigonometric calculations optionally in Degrees (DEG: 1°=PI/180) or Radians (RAD: 1rad=180°/PI).
Scientific Calculator 3 provides a large history display, where all inputs and results can be checked easily. This calculation history is kept until explicit deletion.
For devices without menu button: please touch the screen longer than 3sec to invoke the setup/options menu!
Functions on main display:
* calc operators: + - × ÷
* parentheses: ( )
* square root and power of 2: sqrt
x²
* permutation: n! (in landscape format only or on tablets)
* reciprocal: 1/x
* percentage: %
* plus minus sign: ±
* memory: MR
MS
M+
* exponent (optional): Exp
Scientific functions
via "sci" button and on large displays:
* power operator: ^
2^
e^
10^
* square and cube root: sqrt
cbrt
* natural logarithm and logarithms of 10: ln
lg
* constants: pi
2pi
e
1/e
* trigonometric, inverse trigonometric and hyperbolic functions: sin asin sinh asinh, cos...., tan....
**Notice:
Scientific Calculator 3 is based on the Open Source Software Arity-2.1.6 "Arithmetic Engine for Java" (Copyright © 2007-2009 Mihai Preda), which is licensed under the Apache license 2.0.