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Delayed square roots

Futures delay the execution of code until the results are needed. This is usually when the value is called explicitly. You have the following code to create a future for the calculation of square roots for numbers one to a million.

require(future)

numbers <- 1:1000000

future_sqrt <- future(sqrt(numbers))

Which of the following statements is/are true about future_sqrt?

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Parallel Programming in R

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