PASCO DataStudio Starter Manual - Manual (Page 17)

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Manual No. 012-08107 DataStudio Starter Manual
17
Calculator
DataStudio incorporates a calculator feature that is capable of not only calculating mathematical
expressions, but also manipulating data measurements from sensors. Similar to displays, calculations
can be created or deleted at any time.
The calculator may be used to graph equations, as well as perform calculations on data sets. Click the
Calculate button to activate the calculator window. Enter functions in the form of y = f (x) where y =
the name of the function and x = variable. Prompt DataStudio to evaluate the expression by clicking
the "Accept" button. The software will highlight any undefined terms, which need to be defined
before calculation can proceed. Variables can be defined as:
Constant: set the variable to a numeric value. This is a local variable, and will be used only in this
equation.
Experiment constant: set the variable to a numeric value that is recognized by all equations in
the experiment (e.g. mass of cart = 500 g)
Data Measurement: associate a data measurement with a variable. This will perform a calcula-
tion on an entire data set to convert the data into another desired quantity (e.g. calculate
momentum using velocity data). Simply click, hold and drag a measurement into the calculator
window and release on the variable to be defined.
Model Range: define a region for the equation, as well as the number of coordinate points
between the range.
Clicking on the buttons below the definition area allows terms to be selected and input automatically
in the correct format. Terms are grouped as:
Scientific (sin (x), cos (x), exp (x), etc.),
Statistical (min (x), avg (x), etc.)
Special (integral (x), derivative (x), etc.)