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Primitive Error Function

Source: R/primitives.R
prim_erf.Rd

Element-wise error function erf(x) = (2 / sqrt(pi)) * integral_0^x exp(-t^2) dt.

Usage

prim_erf(x)

Arguments

x

(arrayish)
One input. Can be any float data type. An R value materializes at its default data type.

Value

(arrayish)
Has the input's shape and data type.

Implemented Rules

  • stablehlo

  • reverse

StableHLO

Lowers to hlo_erf(), an op of the CHLO dialect, a higher-level companion to StableHLO that is lowered to it during compilation. See chlo.erf.

See also

nv_erf()

Examples

# the input's data type carries through
x <- nv_array(c(-1, 0, 1))
prim_erf(x)
#> AnvlArray
#>  -0.8427
#>   0.0000
#>   0.8427
#> [ CPUf32{3} ] 

# an R value materializes at its default data type
prim_erf(1)
#> AnvlArray
#>  0.8427
#> [ CPUf32{} ]