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# Example: lr.save_double and lr.eval_double

In the following example, save_double createsparameter`twenty_two` and eval_double saves the value to a Double variable and outputs the value using output_message.

    Dim dVal as Double
    lr.save_double "twenty_two", 22
    dVal = lr.eval_double ("<twenty_two>")
    lr.output_message "The value of variable dVal is " _
        + Cstr(dVal)
    lr.output_message "The value of parameter twenty_two is " _
        + Cstr(lr.eval_double ("<twenty_two>"))

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