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| author | Dominic Symes <dominic.symes@arm.com> | 2024-03-21 15:44:26 +0000 |
|---|---|---|
| committer | Dominic Symes <dominic.symes@arm.com> | 2024-04-05 14:24:37 +0100 |
| commit | 4f95cd883bd8ec12f6f4c0450425080049a0e463 (patch) | |
| tree | c9bc16dbffa49e520a5b9efd2aec394d8834e43a | |
| parent | 770b18e3d2f36f520b824c70a063381156511bb7 (diff) | |
| download | specification-4f95cd883bd8ec12f6f4c0450425080049a0e463.tar.gz | |
Main Conformance: Update SIN,COS error bounds
Large input values to SIN or COS can lead to
proportionately large errors in the angle and
so in the SIN or COS result.
Change-Id: Ibc0d8f4f1db27b8c8855c48a238040442c14ef71
Signed-off-by: Dominic Symes <dominic.symes@arm.com>
| -rw-r--r-- | chapters/introduction.adoc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/chapters/introduction.adoc b/chapters/introduction.adoc index c6764d3..b8f1730 100644 --- a/chapters/introduction.adoc +++ b/chapters/introduction.adoc @@ -321,13 +321,13 @@ Then `tosa_reference_check_fp_bnd<in_out_t>(out_imp, out_ref, err_bnd)` must be | <<COS>> | Let `x` be an input element and `out_imp` the implementation output of `cos(x)`. + Let `out_ref` be the result of the fp64_t reference implementation of `cos(x)`. + -Let `err_bnd = abs(out_ref) * exp2(-normal_frac<in_out_t>/2)` + +Let `err_bnd = abs(x) * exp2(-normal_frac<in_out_t>/2)` + Then `tosa_reference_check_fp_bnd<in_out_t>(out_imp, out_ref, err_bnd)` must be true | <<SIN>> | Let `x` be an input element and `out_imp` the implementation output of `sin(x)`. + Let `out_ref` be the result of the fp64_t reference implementation of `sin(x)`. + -Let `err_bnd = abs(out_ref) * exp2(-normal_frac<in_out_t>/2)` + +Let `err_bnd = abs(x) * exp2(-normal_frac<in_out_t>/2)` + Then `tosa_reference_check_fp_bnd<in_out_t>(out_imp, out_ref, err_bnd)` must be true | <<RESIZE>> |