docs: update examples and improve type specificity

Author: kgryte

lib/node_modules/@stdlib/math/base/tools/evalpoly-compile-c/README.md

@@ -123,29 +123,14 @@ static float polyval123( const float x ) {
 <!-- eslint no-undef: "error" -->
 
 ```javascript
-var randu = require( '@stdlib/random/base/randu' );
-var round = require( '@stdlib/math/base/special/round' );
-var Float64Array = require( '@stdlib/array/float64' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var compile = require( '@stdlib/math/base/tools/evalpoly-compile-c' );
 
-var coef;
-var sign;
-var str;
-var i;
-
-// Create an array of random coefficients...
-coef = new Float64Array( 10 );
-for ( i = 0; i < coef.length; i++ ) {
-    if ( randu() < 0.5 ) {
-        sign = -1.0;
-    } else {
-        sign = 1.0;
-    }
-    coef[ i ] = sign * round( randu()*100.0 );
-}
+// Create an array of random coefficients:
+var coef = discreteUniform( 10, -100, 100 );
 
 // Compile a function for evaluating a polynomial:
-str = compile( coef );
+var str = compile( coef );
 console.log( str );
 ```
 

lib/node_modules/@stdlib/math/base/tools/evalpoly-compile-c/docs/types/index.d.ts

@@ -25,7 +25,7 @@ interface Options {
 	/**
 	* Input value floating-point data type (e.g., `double` or `float`). Default: `'double'`.
 	*/
-	dtype?: string;
+	dtype?: 'double' | 'float';
 
 	/**
 	* Function name. Default: `'evalpoly'`.

lib/node_modules/@stdlib/math/base/tools/evalpoly-compile-c/docs/types/test.ts

@@ -55,7 +55,7 @@ import compile = require( './index' );
 	compile( [ 3.0, 2.0, 1.0 ], ( x: number ): number => x ); // $ExpectError
 }
 
-// The compiler throws an error if the function is provided a `dtype` option which is not a string...
+// The compiler throws an error if the function is provided an invalid `dtype` option...
 {
 	compile( [ 3.0, 2.0, 1.0 ], { 'dtype': true } ); // $ExpectError
 	compile( [ 3.0, 2.0, 1.0 ], { 'dtype': false } ); // $ExpectError

lib/node_modules/@stdlib/math/base/tools/evalpoly-compile-c/examples/index.js

@@ -19,9 +19,7 @@
 'use strict';
 
 var resolve = require( 'path' ).resolve;
-var randu = require( '@stdlib/random/base/randu' );
-var round = require( '@stdlib/math/base/special/round' );
-var Float64Array = require( '@stdlib/array/float64' );
+var discreteUniform = require( '@stdlib/random/array/discrete-uniform' );
 var tryRequire = require( '@stdlib/utils/try-require' );
 
 var compile = tryRequire( resolve( __dirname, '..', 'lib' ) );
@@ -32,23 +30,10 @@ if ( compile instanceof Error ) {
 }
 
 function main() {
-	var coef;
-	var sign;
-	var str;
-	var i;
-
-	// Create an array of random coefficients...
-	coef = new Float64Array( 10 );
-	for ( i = 0; i < coef.length; i++ ) {
-		if ( randu() < 0.5 ) {
-			sign = -1.0;
-		} else {
-			sign = 1.0;
-		}
-		coef[ i ] = sign * round( randu()*100.0 );
-	}
+	// Create an array of random coefficients:
+	var coef = discreteUniform( 10, -100, 100 );
 
 	// Compile a function for evaluating a polynomial:
-	str = compile( coef );
+	var str = compile( coef );
 	console.log( str );
 }