Teledyne LeCroy PXA125 - Manual (Page 108)

User Manual PXA125
3-94 ArbConnection
are done with double-digit precision. For the trigonometric functions,
all angles are expressed in radians.
A number of constants are provided: e, which is the base of the
natural logarithm; pi, which is the circumference of a unit-diameter
circle; per, which equals the programmed horizontal range; f, which
equals 1 /per; omg, which equals 2 * pi / per, and numerals from -
1E^20 <> 1E^20.
There are three classes of precedence: ^ (raise to power) has the
highest precedence; (multiply) and / (divide) come second; + and -
have the lowest precedence. Parentheses may be used to change the
order of precedence. The following table summarize the mathematical
expressions and their respective abbreviated commands that can be
used with the Equation Editor.
Equation Editor Operands
^ Raise to the power
* Multiply
/ Divide
+ Add
- 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 got yourself familiar with the operands and conventions, you
can commence with a few simple equations and see what they do
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