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2-46 Return to Section Topics 2600S-901-01 Rev. C / January 2008

Section 2: TSP Programming Series 2600 System SourceMeter® Instruments Reference Manual

Operators

Arithmetic Operators: Relational Operators: Logical Operators:

+ (addition) < (less than) and

- (subtraction) > (greater than) or

* (multiplication) <= (less than or equal) not

/ (division) >= (greater than or equal)

- (negation) ~= (not equal)

== (equal)

Functions

TSL allows you to define functions. A function can take a predefined number of parameters and

return multiple parameters if desired.

Let's define a function and call it:

function add_two(parameter1, parameter2)

return(parameter1 + parameter2)

end

print(add_two(3, 4))

Below is an alternate syntax for defining a function. Functions are first-class values in TSL, which

means functions can be stored in variables, passed as arguments, and returned as results if

desired.

add_three = function(parameter1, parameter2, parameter3)

return(parameter1 + parameter2 + parameter3)

end

print(add_three(3, 4, 5))

Here is a function that returns multiple parameters; sum, difference, and ratio of the two numbers

passed to it:

function sum_diff_ratio(parameter1, parameter2)

psum = parameter1 + parameter2

pdif = parameter1 – parameter2

prat = parameter1 / parameter2

return psum, pdif, prat

end

sum, diff, ratio = sum_diff_ratio(2,3)

print(sum)

print(diff)

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