Hex2 0.1
========

simple calculator with variables support

type the forumla into the edit and press enter or "calc" button.
the currently defined variables are shown as list with various
formats.
Double click to and entry to add that variable or its value to
the formula edit at the current cursor position.

Syntax:
*******

  =     assign a variable, if no variable is given, "result" is used
        e.g. "a=1" "a=b+3"

Numbers
-------
you can use '.' or ',' as decimal separator

0..9       decimal numbers      e.g. "42"    result=42
           "1.54e3", "-134.44", "12,33e-4" 
$0..9 A..F hexadecimal numbers  e.g. "$42"   result=66
%0,1       binary numbers       e.g. "%0110" result=6
Pi         the number Pi        e.g. "pi"    result=3.14159265358979

Operations
----------  
  +        add numbers together e.g. "3+2" result=5
  -        subtract number      e.g. "3-2" result=1
  *        multipy numbers      e.g. "3*2" result=6
  /        divide numbers       e.g. "3/2" result=1.5
  ^        raise to the power   e.g. "3^2" result=9
  &        bitwise and          e.g. "3&2" result=2
  |        bitwise or           e.g. "3|2" result=3
  #        bitwise xor          e.g. "3#2" result=1
  <        bitwise shift left   e.g. "3<2" result=12
  >        bitwise shift right  e.g. "5>2" result=1

Trigonometic Functions
----------------------
  sin      sine function, parameter in degree    e.g. "sin(90)"  result=1
  cos      cosine function, parameter in degree  e.g. "cos(90)"  result=0
  tan      tangent function, parameter in degree e.g. "tan(45)"  result=1
  
  sinr     sine function, parameter in radiant    e.g. "sinr(pi/2)"  result=1
  cosr     cosine function, parameter in radiant  e.g. "cosr(pi/2)"  result=0
  tanr     tangent function, parameter in radiant e.g. "tanr(pi/4)"  result=1
  
  asin     arcsine function, parameter in degree    e.g. "asin(1)"  result=90
  acos     arccosine function, parameter in degree  e.g. "acos(0)"  result=90
  atan     arctangent function, parameter in degree e.g. "atan(1)"  result=45

  asinr    arcsine function, parameter in radiant    e.g. "asinr(1)"  result=1.5707963267949
  acosr    arccosine function, parameter in radiant  e.g. "acosr(0)"  result=1.5707963267949
  atanr    arctangent function, parameter in radiant e.g. "atanr(1)"  result=0.785398163397448
  
other functions
---------------

round()    round using IEEE754 rounding rules e.g. "round(-1.5)" result=-2 "round(1.5)" result=2  
ceil()     round always upwards               e.g. "ceil(-1.1)"  result=-1 "ceil(1.1)"  result=2
floor()    round always downwards             e.g. "floor(-1.1)" result=-2 "floor(1.1)" result=1
int()      cut away the after point decimals  e.g. "int(-1.1)"   result=-1 "floor(1.1)" result=1

abs()      absolute value           e.g. "abs(-42)" result= 42 "abs(42)" result=42
fak()      fakturial (1*2*3*...*n)  e.g. "fak(5)" result=120
sqrt()     square root              e.g. "sqrt(9)" result=3
rand()     random between 0 and parameter e.g. "rand(100)" result=54

exp()      exponential (e^n)        e.g. "exp(5)"  result=148.413159102577
ln()       natural logarithm        e.g. "ln(5)"   result=1.6094379124341
lg()       logarithm base 10        e.g. "lg(100)" result=2   
lb()       logarithm base 2         e.g. "lb(8)"   result=3