User manual

PicoScope 6 User's Guide 69
Copyright © 2007-2012 Pico Technology Ltd. All rights reserved. psw.en
Advanced view
Clicking the Advanced button reveals more function buttons, including trigonometric
functions and logarithms.
Maths Channel Wizard Equation dialog, advanced view
Advanced buttons
Button
Equation
Description
sqrt()
Square root
^
Power. Raise
x
to the power of
y.
ln()
Natural logarithm
abs()
Absolute value
freq()
Frequency. Calculated in hertz.
norm()
Normalise. PicoScope calculates the maximum
and minimum values of the argument over the
capture period, and then scales and offsets the
argument so that it exactly fits the range [0, +1]
units.
exp()
Natural exponent. Raise
e
, the base of the
natural logarithm, to the power of
x
.
log()
Logarithm. Base-10 logarithm.
derivative()
Derivative. Calculated with respect to the x-axis.
Note: the derivative of a sampled signal contains a
large amount of noise, so it is advisable to apply
digital low-pass filtering to all channels used as
inputs to this function.
integral()
Integral. Along the x-axis.
min()
Minimum. Negative peak detect of all previous
waveforms.
111