© François Le Coat
©Karl Samyn

Last modified :
         09 mar 1998

Functions



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A whole list with all the functions suported byEureka.
ln = natural logarithm
x = ln(ex)
log = base 10 logarithm
x = log(10x)
imaginary unit : i
The imaginary unit is also often written as j (see curves of Bode), especially there were electrical currents are involved in the calculations and parameters. Current has also as symbol i.
The definition of i can be written as follows : i*i = -1 An other way to see this is like this : sqrt(-1) = i (don't forget this is a faultly defenition because you can't take a sqrt from a negative number.)
& = logic AND
This operator can be defined by next table :
X YX&Y
000
010
100
111
| = logic OR
This operator can be defined by next table :
X YX|Y
000
011
101
111
! = logic NOT
This operator can be defined by next table :
X!X
01
10

The constant values :

  • pi = PI = 3.141592654
  • eu = e = 2.718281828
  • i = imaginary unit


[exclamation mark] More info will follow in the next version.