Format Double Array with Scientific Notation — format

Formats a double array using scientific notation with enough digits to round-trip at the requested precision. For 32 bit, the values are first rounded to the nearest single-precision float, so the parser's own rounding cannot round them a second time.

This is used to embed floating point constants into stableHLO programs.

Usage

format_double(x, precision = 64)

Arguments

x: (double())
Vector to format.
precision: (integer(1))
Currently supports 32 and 64 bit precisions.

Value

character()

Examples

format_double(1.23, 32)
#> [1] "1.23000002e+00"
format_double(1.23, 64)
#> [1] "1.2300000000000000e+00"