dsp/fourier/internal/fftpack: fix formatting

dsp/fourier/internal/fftpack/cfft.go

@@ -18,7 +18,7 @@ import (
 // tabulation of the trigonometric functions are computed and
 // stored in work.
 //
-//  input parameter
+//	Input parameter:
 //
 //	n      The length of the sequence to be transformed.
 //

dsp/fourier/internal/fftpack/cosq.go

@@ -15,12 +15,12 @@ import "math"
 // tabulation of the trigonometric functions are computed and
 // stored in work.
 //
-// Input parameter
+//	Input parameter:
 //
 //	n       The length of the sequence to be transformed. the method
 //	        is most efficient when n+1 is a product of small primes.
 //
-// Output parameters
+//	Output parameters:
 //
 //	work    A work array which must be dimensioned at least 3*n.
 //	        The same work array can be used for both Cosqf and Cosqb
@@ -55,7 +55,7 @@ func Cosqi(n int, work []float64, ifac []int) {
 // The array work which is used by subroutine Cosqf must be
 // initialized by calling subroutine Cosqi(n,work).
 //
-// Input parameters
+//	Input parameters:
 //
 //	n       The length of the array x to be transformed. The method
 //	        is most efficient when n is a product of small primes.
@@ -72,7 +72,7 @@ func Cosqi(n int, work []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=0, ..., n-1
 //	          x[i] = x[i] + the sum from k=0 to k=n-2 of
@@ -142,8 +142,7 @@ func cosqf1(n int, x, w, xh []float64, ifac []int) {
 // The array work which is used by subroutine Cosqb must be
 // initialized by calling subroutine Cosqi(n,work).
 //
-//
+//	Input parameters:
-// Input parameters
 //
 //	n       The length of the array x to be transformed. The method
 //	        is most efficient when n is a product of small primes.
@@ -160,7 +159,7 @@ func cosqf1(n int, x, w, xh []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=0, ..., n-1
 //	          x[i]= the sum from k=0 to k=n-1 of

dsp/fourier/internal/fftpack/cost.go

@@ -14,12 +14,12 @@ import "math"
 // Cost. The prime factorization of n together with a tabulation
 // of the trigonometric functions are computed and stored in work.
 //
-// Input parameter
+//	Input parameter:
 //
 //	n       The length of the sequence to be transformed. The method
 //	        is most efficient when n-1 is a product of small primes.
 //
-// Output parameters
+//	Output parameters:
 //
 //	work    A work array which must be dimensioned at least 3*n.
 //	        Different work arrays are required for different values
@@ -56,7 +56,7 @@ func Costi(n int, work []float64, ifac []int) {
 // The array work which is used by subroutine Cost must be
 // initialized by calling subroutine Costi(n,work).
 //
-// Input parameters
+//	Input parameters:
 //
 //	n       The length of the sequence x. n must be greater than 1.
 //	        The method is most efficient when n-1 is a product of
@@ -74,7 +74,7 @@ func Costi(n int, work []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=1,...,n
 //	          x(i) = x(1)+(-1)**(i-1)*x(n)

dsp/fourier/internal/fftpack/sinq.go

@@ -14,12 +14,12 @@ import "math"
 // Sinqb. The prime factorization of n together with a tabulation
 // of the trigonometric functions are computed and stored in work.
 //
-// Input parameter
+//	Input parameter:
 //
 //	n       The length of the sequence to be transformed. The method
 //	        is most efficient when n+1 is a product of small primes.
 //
-// Output parameter
+//	Output parameter:
 //
 //	work    A work array which must be dimensioned at least 3*n.
 //	        The same work array can be used for both Sinqf and Sinqb
@@ -54,7 +54,7 @@ func Sinqi(n int, work []float64, ifac []int) {
 // The array work which is used by subroutine Sinqf must be
 // initialized by calling subroutine Sinqi(n,work).
 //
-// Input parameters
+//	Input parameters:
 //
 //	n       The length of the array x to be transformed. The method
 //	        is most efficient when n is a product of small primes.
@@ -71,7 +71,7 @@ func Sinqi(n int, work []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=0, ..., n-1
 //	          x[i] = (-1)^(i)*x[n-1]
@@ -120,7 +120,7 @@ func Sinqf(n int, x, work []float64, ifac []int) {
 // The array work which is used by subroutine Sinqb must be
 // initialized by calling subroutine Sinqi(n,work).
 //
-// Input parameters
+//	Input parameters:
 //
 //	n       The length of the array x to be transformed. The method
 //	        is most efficient when n is a product of small primes.
@@ -137,7 +137,7 @@ func Sinqf(n int, x, work []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=0, ..., n-1
 //	          x[i]= the sum from k=0 to k=n-1 of

dsp/fourier/internal/fftpack/sint.go

@@ -14,12 +14,12 @@ import "math"
 // The prime factorization of n together with a tabulation of the
 // trigonometric functions are computed and stored in work.
 //
-// Input parameter
+//	Input parameter:
 //
 //	n       The length of the sequence to be transformed. The method
 //	        is most efficient when n+1 is a product of small primes.
 //
-// Output parameter
+//	Output parameter:
 //
 //	work    A work array with at least ceil(2.5*n) locations.
 //	        Different work arrays are required for different values
@@ -54,7 +54,7 @@ func Sinti(n int, work []float64, ifac []int) {
 // The array work which is used by subroutine Sint must be
 // initialized by calling subroutine Sinti(n,work).
 //
-// Input parameters
+//	Input parameters:
 //
 //	n       The length of the sequence to be transformed. The method
 //	        is most efficient when n+1 is the product of small primes.
@@ -72,7 +72,7 @@ func Sinti(n int, work []float64, ifac []int) {
 //
 //	ifac    An integer work array of length at least 15.
 //
-// Output parameters
+//	Output parameters:
 //
 //	x       for i=1,...,n
 //	          x(i)= the sum from k=1 to k=n