## Real Vectors

## Usage

    real(length = 0)
    as.real(x)
    is.real(x)

## Description

`real` creates a double precision vector of the specified length. Each element of the vector is equal to `0`.

`as.real` attempts to coerce its argument to be of real type.

`is.real` returns `TRUE` or `FALSE` depending on whether its argument is of real type or not.

## Note

R has no single precision data type. All real numbers are stored in double precision format.

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