`normal_distribution_common`

Shared portable standard normal distribution numeric helpers.

| Availability: | logtalk_load(ranking_protocols(loader))

| Author: Paulo Moura | Version: 1:0:0 | Date: 2026-08-02

| Compilation flags: | static

| Dependencies: | (none)

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

(none)

Protected predicates

.. index:: standard_normal_density/2 .. _normal_distribution_common/0::standard_normal_density/2:

standard_normal_density/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Computes the standard normal probability density at the given value.

| Compilation flags: | static

| Template: | standard_normal_density(Value,Density) | Mode and number of proofs: | standard_normal_density(+number,-float) - one_or_error

| Exceptions: | Value is not a number: | type_error(number,Value)

.. index:: standard_normal_distribution/2 .. _normal_distribution_common/0::standard_normal_distribution/2:

standard_normal_distribution/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Computes an approximation of the standard normal cumulative distribution at the given value.

| Compilation flags: | static

| Template: | standard_normal_distribution(Value,Probability) | Mode and number of proofs: | standard_normal_distribution(+number,-float) - one_or_error

| Exceptions: | Value is not a number: | type_error(number,Value)

.. index:: standard_normal_quantile/2 .. _normal_distribution_common/0::standard_normal_quantile/2:

standard_normal_quantile/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Computes an approximation of the standard normal quantile for a probability strictly between zero and one.

| Compilation flags: | static

| Template: | standard_normal_quantile(Probability,Quantile) | Mode and number of proofs: | standard_normal_quantile(+number,-float) - one_or_error

Private predicates

(none)

Operators

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