DOC: Documentation update.

doc/specs/codata_constants.md

@@ -2,7 +2,7 @@
 title: Codata constants
 ---
 
-# Introduction
+# Description 
 
 The modules: 
 
@@ -13,59 +13,14 @@ The modules:
 
 are automatically generated with a simple parser written in Python.
 
-The latest codata constants were released in 2022 by the [NIST](http://physics.nist.gov/constants)
-All values for the codata constants are provided as double precision reals. 
+The latest codata constants were released in 2022 by the [NIST](http://physics.nist.gov/constants).
+All values for the codata constants are provided as double precision reals in a derived type
+[[codata__constants_type(module):codata_constant_type(type)]].
 The names are quite long and can be aliased with shorter names.
-
-The derived type [[codata__constants_type(module):codata_constant_type(type)]] defines:
-
-* 4 members:
-
- * `name` (string)
- * `value` (double precision real)
- * `uncertainty` (double precision real)
- * `unit` (string)
-
-* 2 type-bound procedures:
-
- * `print` for print the values of the constant members.
- * `to_real` for getting the value or the uncertainty to the desired precision.
-
 A module level interface [[codata__constants_type(module):to_real(interface)]] is 
 available for getting the constant value or uncertainty of a constant. 
 
 
-
-# `to_real` - Get the constant value or uncertainty.
-
-## Description
-
-Convert a [[codata__constants_type(module):codata_constant_type(type)]] to a real. 
-**Warning**: Some constants cannot be converted to simple precision reals due to the values of the exponents.
-
-## Syntax
-
-`r = ` [[codata__constants_type:to_real(interface)]] `(c, mold [, uncertainty])`
-
-## Arguments
-
-`c`: argument has `intent(in) ` and shall be of type [[codata__constants_type:codata_constant_type(type)]].
-
-`mold`: argument has `intent(in)` and shall be of `real` type. 
-**Note**: The type of the `mold` argument defines the type of the result.
-
-`uncertainty` (optional): argument has `intent(in)` and shall be of `logical` type. 
-It specifies if the uncertainty needs to be returned instead of the value. Default to `.false.`.
-
-## Return value
-
-Returns a scalar of `real` type which is either the value or the uncertainty of a codata constant.
-
-
-
-
-
-
 # Example
 
 ```fortran

doc/specs/index.md

@@ -5,6 +5,4 @@ title: Specifications (specs)
 This is an index/directory of the specifications (specs) for each module.
 
 - [constants](codata_constants.html)
-- [version](codata_version.html)
-