7: Introduction to TSP commands Model DMM7510 7½ Digit Graphical Sampling Multimeter
7-14 DMM7510-901-01 Rev. B / May 2015
Variable types
Variables can be one of the following types.
Variable types and values
Variable type returned Value Notes
The type of the value
, whose
main property is to be different from
any other value; usually it represents
the absence of a useful value.
Boolean is the type of the values
false and true. In Lua, both nil
and false make a condition
false; any other value makes it
.
All numbers are real numbers; there
is no distinction between integers
and floating-point numbers.
characters
a block of code
Functions perform a task or compute
and return values.
New tables are created with { }
braces. For example,
{1, 2, 3.00e0}.
Allows arbitrary program data to be
stored in Lua variables.
To determine the type of a variable, you can call the type() function, as shown in the examples
below.
The output you get from these examples may vary depending on the data format that is set.
Example: Nil
print(x, type(x))
Example: Boolean
print(y, type(y))
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