docs: fix TSDoc issues across many @stdlib/math/base/special declarations

Correct documentation-only issues in the TypeScript declaration files
flagged by an audit of the `@stdlib/math/base/special` namespace. No
emitted types change in a behavior-affecting way; the edits are limited
to TSDoc prose, examples, parameter names/descriptions, and internal
interface names.

Highlights:

- `kernel-betainc`: the 4th/5th parameters were named `invert`/
  `normalized` with descriptions swapped relative to the implementation
  `kernelBetainc( x, a, b, regularized, upper )`; rename to
  `regularized`/`upper` and re-pair the descriptions, fix the garbled
  "regularized boolean beta function" -> "incomplete beta function",
  and fix the interface doc comment misspelling `kernalBetaInc`.
- `gammainc`: split the muddled `regularized`/`upper` Notes into two
  clear bullets and fix a stale `s <= 0` -> `a <= 0` reference.
- `cfloor`: summary now says "Rounds each component of..." like its
  siblings; `cpolarf`/`sincosd`: fix copy-pasted/lowercase interface
  names (`Cpolar` -> `Cpolarf`, `sincosd` -> `SinCosd`).
- `minmax`/`minmaxn`/`minmaxf`/`sincospi`: `assign` `@example`s now call
  the `.assign` method instead of the bare function (so `v === out` is
  actually `true`); correct the `assign` summary/`@returns` for
  `sincospi`; split merged `@example` blocks.
- `minabs`: drop the empty-set Notes paragraph (the function is binary);
  `minabsn`/`maxabsn`/`minmaxabsn`: correct the empty-args identity
  Notes (a minimum's bound is the greatest *lower* bound; the absolute
  maximum's empty result follows from the `-infinity` identity).
- `covercos`/`coversin`/`havercos`: add the defining-formula Notes block
  their forward-trig siblings include.
- Assorted prose fixes: `frexp`/`frexpf` "Inteface" typo, `cscd`/`absf`/
  `acsch`/`asech`/`nonfibonacci`/`nonfibonaccif`/`negalucasf` summary/
  Notes wording, `floorn` summary ("numeric value", matching `ceiln`/
  `roundn`/`truncn`), `cotd`/`tand` trailing periods, `cround` unused
  requires, `powf` single-precision pi literal, `gammaincinv`
  argument-order notation, `lnf`/`round` `@returns`, `truncsd`/
  `binomcoef`/`fast/hypot`/`fast/hypotf` `@param` descriptions,
  `gamma-lanczos-sum-expg-scaled` unbalanced parenthesis, `sind` example
  spacing, `fast/maxf` stray blank line, and a few missing `@example`
  tags and interface doc comments.

This PR addresses only the TypeScript declaration files; the generated
namespace aggregator will pick up these fixes on regeneration.

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown_pkg_readmes
    status: na
  - task: lint_markdown_docs
    status: na
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
  - task: lint_repl_help
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  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
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  - task: lint_javascript_examples
    status: na
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  - task: lint_python
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  - task: lint_c_src
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  - task: lint_c_examples
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    status: na
  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
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  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
    status: passed
  - task: lint_license_headers
    status: passed
---

Author: Planeshifter

lib/node_modules/@stdlib/math/base/special/absf/docs/types/index.d.ts

@@ -19,7 +19,7 @@
 // TypeScript Version: 4.1
 
 /**
-* Computes the absolute value of single-precision floating-point number `x`.
+* Computes the absolute value of a single-precision floating-point number `x`.
 *
 * @param x - input value
 * @returns absolute value

lib/node_modules/@stdlib/math/base/special/acsch/docs/types/index.d.ts

@@ -19,7 +19,7 @@
 // TypeScript Version: 4.1
 
 /**
-* Computes the hyperbolic arccosecant of a number.
+* Computes the hyperbolic arccosecant of a double-precision floating-point number.
 *
 * @param x - input value
 * @returns hyperbolic arccosecant

lib/node_modules/@stdlib/math/base/special/asech/docs/types/index.d.ts

@@ -19,7 +19,7 @@
 // TypeScript Version: 4.1
 
 /**
-* Computes the hyperbolic arcsecant of a number.
+* Computes the hyperbolic arcsecant of a double-precision floating-point number.
 *
 * @param x - input value
 * @returns hyperbolic arcsecant

lib/node_modules/@stdlib/math/base/special/binomcoef/docs/types/index.d.ts

@@ -21,7 +21,7 @@
 /**
 * Computes the binomial coefficient of two integers.
 *
-* @param n - input value
+* @param n - first input value
 * @param k - second input value
 * @returns function value
 *

lib/node_modules/@stdlib/math/base/special/cfloor/docs/types/index.d.ts

@@ -23,7 +23,7 @@
 import { Complex128 } from '@stdlib/types/complex';
 
 /**
-* Rounds a double-precision complex floating-point number toward negative infinity.
+* Rounds each component of a double-precision complex floating-point number toward negative infinity.
 *
 * @param z - input value
 * @returns result

lib/node_modules/@stdlib/math/base/special/cotd/docs/types/index.d.ts

@@ -19,7 +19,7 @@
 // TypeScript Version: 4.1
 
 /**
-* Computes the cotangent of an angle measured in degrees
+* Computes the cotangent of an angle measured in degrees.
 *
 * @param x - input value (in degrees)
 * @returns cotangent

lib/node_modules/@stdlib/math/base/special/covercos/docs/types/index.d.ts

@@ -21,6 +21,10 @@
 /**
 * Computes the coversed cosine.
 *
+* ## Notes
+*
+* -   The coversed cosine is defined as `1 + sin(x)`.
+*
 * @param x - input value (in radians)
 * @returns coversed cosine
 *

lib/node_modules/@stdlib/math/base/special/coversin/docs/types/index.d.ts

@@ -21,6 +21,10 @@
 /**
 * Computes the coversed sine.
 *
+* ## Notes
+*
+* -   The coversed sine is defined as `1 - sin(x)`.
+*
 * @param x - input value (in radians)
 * @returns coversed sine
 *

lib/node_modules/@stdlib/math/base/special/cpolarf/docs/types/index.d.ts

@@ -26,7 +26,7 @@ import { Collection } from '@stdlib/types/array';
 /**
 * Interface describing `cpolarf`.
 */
-interface Cpolar {
+interface Cpolarf {
 	/**
 	* Computes the absolute value and the phase of a single-precision complex floating-point number.
 	*
@@ -77,7 +77,7 @@ interface Cpolar {
 * var v = cpolarf( new Complex64( 5.0, 3.0 ) );
 * // returns [ ~5.83, ~0.5404 ]
 */
-declare var cpolarf: Cpolar;
+declare var cpolarf: Cpolarf;
 
 
 // EXPORTS //

lib/node_modules/@stdlib/math/base/special/cround/docs/types/index.d.ts

@@ -30,8 +30,6 @@ import { Complex128 } from '@stdlib/types/complex';
 *
 * @example
 * var Complex128 = require( '@stdlib/complex/float64/ctor' );
-* var real = require( '@stdlib/complex/float64/real' );
-* var imag = require( '@stdlib/complex/float64/imag' );
 *
 * var v = cround( new Complex128( -4.2, 5.5 ) );
 * // returns <Complex128>[ -4.0, 6.0 ]