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© François Le Coat
©Karl Samyn
Last modified :
26 apr 1998
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Functions
- HELP-button
- A whole list with all the functions suported by Eureka.
- 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.
Another 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 Operators :
- & = logic AND
- This operator can be defined by next table :
- | = logic OR
- This operator can be defined by next table :
- ! = logic NOT
- This operator can be defined by next table :
Special symbols :
- !> = not superior to
- !< = not inferior to
- // = parallel e.g. R1//R2=R1*R2/(R1+R2)
The constant values :
- pi = PI = 3.141592654
- eu = e = 2.718281828
- i = imaginary unit
More info will follow
in the next version.
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