fix: decrement waOffsets by 1, disable eslint rule, mention correct value

Author: gunjjoshi

lib/node_modules/@stdlib/fft/base/fftpack/lib/passfb.js

@@ -95,7 +95,7 @@ var ccRef = require( './cc_ref.js' );
 * @param {number} fsign - sign factor indicating the direction of the FFT (e.g., +1 for forward, -1 for inverse)
 * @returns {void}
 */
-function passfb( nac, ido, ip, l1, idl1, cc, ccOffset, c1, c1Offset, c2, c2Offset, ch, chOffset, ch2, ch2Offset, wa, waOffset, fsign ) { // eslint-disable-line max-params
+function passfb( nac, ido, ip, l1, idl1, cc, ccOffset, c1, c1Offset, c2, c2Offset, ch, chOffset, ch2, ch2Offset, wa, waOffset, fsign ) { // eslint-disable-line max-params, max-statements
 	var ipp2;
 	var idij;
 	var idlj;

lib/node_modules/@stdlib/fft/base/fftpack/lib/radf3.js

@@ -72,7 +72,7 @@ var ccRef = require( './cc_ref.js' );
 
 var sc = sincos( ( 2 * TWO_PI ) / 3 );
 var taur = sc[ 1 ]; // -0.5
-var taui = -sc[ 0 ]; // -0.866025403784439
+var taui = -sc[ 0 ]; // 0.866025403784439
 
 
 // MAIN //

lib/node_modules/@stdlib/fft/base/fftpack/lib/radf5.js

@@ -134,9 +134,9 @@ function radf5( ido, l1, cc, ccOffset, ch, chOffset, wa1, wa1Offset, wa2, wa2Off
 	chOffset = 1 + ( ido * 6 );
 	ccOffset = 1 + ( ido * ( 1 + l1 ) );
 	wa1Offset -= 1;
-	wa2Offset -= 2;
-	wa3Offset -= 3;
-	wa4Offset -= 4;
+	wa2Offset -= 1;
+	wa3Offset -= 1;
+	wa4Offset -= 1;
 
 	// Function body:
 	for ( k = 1; k <= l1; k++ ) {