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ArbConnection
4
Equation Editor Operands
^
Raise to the power
*
Multiply
/
Divide
+
Add
Ä
Subtract
()
Parentheses
e
Base of natural Logarithm
pi (π)
Circumference of unit-diameter circle
per
Horizontal wavelength in points
f
I/per
omg (Ω)
2*π / per
amp
Amplitude in units of points or seconds
sin(x)
The sine of x(*)
cos(x)
The cosine of x
tan(x)
The tangent of x
ctn(x)
The cotangent of x
log(x)
The base IO logarithm of x
In(x)
The natural (base e) logarithm of x
abs(x)
The absolute value of x
-1E^20<>1E^20
Numerals, equation constants
(* )x = argument mathematical expression
After you get familiar with the operands and conventions, you can
commence with a few simple equations and see what they do to
your waveform screen. Once you'll get the feel, you'll be able to
explore your own creativity to generate much more complicated and
complex waveforms.
Typing Equations
If you remember from your old high school studies, the simplest
curve of Y as a function of X is defined by the equation Y=aX+b.
You can use the same “technique” to generate straight lines with
the Equation Editor. Assuming first that p=0, try this:
Amplitude(p)=1000
Press [Preview] and see what you get. Of course, you get an
uninteresting line that runs parallel to the X-axis. Now, lets give the
line some angle by typing:
Amplitude(p)=-2*p+2000
Press [Preview] and see that the line slopes down. It may still be
not very interesting however, pay close attention to the convention
that is used in this equation. You cannot type: Amplitude(p)=2p+1000, like you would normally do in your notebook; You must
use the * (multiply) sign, otherwise you'll get a syntax error. Now
we'll try to generate a simple sine waveform. Try this:
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