Converted all convolve functions to fastConvolve in applicable places

src/main/java/com/github/psambit9791/jdsp/filter/Wiener.java

@@ -64,7 +64,7 @@ public double[] filter(double[] signal) {
 
         // Estimating the local mean
         Convolution c1 = new Convolution(signal, cons);
-        localMean = c1.convolve("same");
+        localMean = c1.fastConvolve("same");
         localMean = MathArrays.scale((1.0/this.windowSize), localMean);
 
         // Estimating the local variance

src/main/java/com/github/psambit9791/jdsp/signal/Detrend.java

@@ -16,7 +16,7 @@
 /**
  * <h2>Detrend</h2>
  * The Detrend class implements different methods to remove trends in a signal and is based on
- * numpy <a href="https://docs.scipy.org/doc/numpy/reference/generated/numpy.convolve.html">detrend()</a> function
+ * scipy <a href="https://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.detrend.html">detrend()</a> function
  * but extends to additionally provide polynomial detrending.
  *  
  *

src/main/java/com/github/psambit9791/jdsp/transform/ContinuousWavelet.java

@@ -54,7 +54,7 @@ public ContinuousWavelet(double[] signal, int[] widths) {
      */
     private Complex[] ricker_cwt(double[] data, double[] wavelet) {
         Convolution c = new Convolution(data, wavelet);
-        return UtilMethods.matToComplex(c.convolve("same"));
+        return UtilMethods.matToComplex(c.fastConvolve("same"));
     }
 
     /**