Teledyne LeCroy WaveRunner XI SERIES Operator’s Manual - Manual (Page 201)

O
PERATOR
’
S
M
ANUAL
WRXi-OM-E Rev C
201
Int Cint (A) calculates the integer value next below A, which can be any acceptable VBS number.
Int (-7.4) = -8.
Log Log (A) calculates the natural log
zero. A negative number or zero will crea arithm (to base e), of any acceptable VBS number greater than
te an error.
10
/ Log(10) To calculate Log (A), use Log (A) = Log(A)
10
Mod odulus of A, which is the remainder after A has been divided by B.
d 55 = 0. -34 Mod 13 = -8. 21 Mod -8 = 5.
A Mod (B) calculates the m
34 Mod 8 = 2. 34 Mo
Rand ize ed for the pseudo-random number generator.
r this purpose.
om Calculates a new se
Randomize Timer uses the real-time clock fo
Sin Sin (A) calculates the sine of any integer or real number, giving an output that is never greater
than +1 or less than -1.
Sqr Sqr (A) calculates the square root of any integer or a real number that is not negative. If A is
negative, an error will occur.
Timer Time since the previous midnight in whole seconds.
Hints and Tips
Set the trigger to Single or
Before sta g a script, re hat you do not need. This is because errors in an existing
scrip e yo ges, even if your current script is perfect. And an existing good script may develop
a fault if you chan rtical scale or the memory length and get an
overflo
When g a script, ma r parameter. You can get some
very fr ng p mode. You can cut and paste the VBS statements if you discover
this er
If your calculation , development might be quicker if you test the principles on a shorter
trace a
Note that the pse eset at the start of a script. If you want a different set of
pseud oms m, to be run once, before any pseudo-randoms
are gene d. You can u rator at any time during execution.
Do not put the final statem gressive result as some parameter
chang outp til the script has been completely run and
quitted, so only th times, you will think that the oscilloscope has
hung u
If you For
If you make a scr he default setup before quitting or powering down, or
you will have a lo
Alw ec things up.
Keep everything that does not have to be inside, to speed things up.
Make cripts commenting, but by structuring neatly as well.
Somet it mig r script in Excel VBA (remembering that VBA is not identical to VBS),
so tha can d If you do this, note that you can read from a cell or write to it using
sta th
A = Worksheets( w, Column).Value
Work "She
for VBScripting
Stopped if you need to do a lot of editing: it is faster.
rtin
t will giv
move any existing scripts t
u error messa
ge the setup. For example, you might change the ve
rd against it in the script. w if you did not gua
startin ke sure that you have chosen the right kind: function o
ustrati roblems if you are in the wrong
ror.
requires a long memory
t first.
udo-random number generator is r
o-rand
rate
every time, put Randomize Timer in the progra
se this instruction to re-seed the gene
ent in a loop, hoping that you can see a pro
es. No ut will be seen on the screen of the instrument un
e final result will appear. If the loop runs many
p.
want a loop, end it with "Next" and not "Next X".
ipt that takes a long time to run, go back to t
ng wait next time you power up.
ays use a r ursive calculation when this will speed
outside a loop
your s clear, not only by indenting and
imes
t you
ht be easier to develop you
isplay intermediate results.
tements like ese:
"Sheet1").Cells(Ro
sheets( et1").Cells(Row, Column).Value = B