new method IASTAppendable#appendAll(IExpr[] args, int startPosition, int

endPosition)

Author: axkr

symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/expression/F.java

@@ -5454,7 +5454,10 @@ public static IAST Plus(final IExpr a0, final IExpr a1) {
 	}
 
 	public static IAST Plus(final long num, final IExpr... a) {
-		return ast(a, Plus).prependClone(ZZ(num));
+		IASTAppendable ast = ast(Plus, a.length + 1, false);
+		ast.append(ZZ(num));
+		ast.appendAll(a, 0, a.length);
+		return ast;
 	}
 
 	public static IAST Pochhammer(final IExpr a0, final IExpr a1) {
@@ -6490,7 +6493,10 @@ public static IASTMutable Times(final IExpr a0, final IExpr a1) {
 	}
 
 	public static IAST Times(final long num, final IExpr... a) {
-		return ast(a, Times).prependClone(ZZ(num));
+		IASTAppendable ast = ast(Times, a.length + 1, false);
+		ast.append(ZZ(num));
+		ast.appendAll(a, 0, a.length);
+		return ast;
 	}
 
 	public static IAST Together(final IExpr a0) {

symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/expression/HMArrayList.java

@@ -351,6 +351,23 @@ public boolean appendAll(List<? extends IExpr> list, int startPosition, int endP
 		}
 		return false;
 	}
+	
+	/** {@inheritDoc} */
+	@Override
+	public boolean appendAll(IExpr[] args, int startPosition, int endPosition) {
+		if (args.length > 0 && startPosition < endPosition) {
+			hashValue = 0;
+			int length = endPosition - startPosition;
+			if (length > array.length - lastIndex) {
+				growAtEnd(length);
+			}
+			for (int i = startPosition; i < endPosition; i++) {
+				array[lastIndex++] = args[i];
+			}
+			return true;
+		}
+		return false;
+	}
 
 	/** {@inheritDoc} */
 	@Override

symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/expression/NILPointer.java

@@ -74,6 +74,11 @@ public boolean appendAll(List<? extends IExpr> list, int startPosition, int endP
 		throw new UnsupportedOperationException();
 	}
 
+	@Override
+	public boolean appendAll(IExpr[] args, int startPosition, int endPosition) {
+		throw new UnsupportedOperationException();
+	}
+	
 	@Override
 	public boolean appendArgs(IAST ast) {
 		throw new UnsupportedOperationException();

symja_android_library/matheclipse-core/src/main/java/org/matheclipse/core/interfaces/IASTAppendable.java

@@ -131,6 +131,21 @@ public interface IASTAppendable extends IASTMutable {
 	 */
 	public boolean appendAll(List<? extends IExpr> list, int startPosition, int endPosition);
 
+	/**
+	 * Appends all elements from offset <code>startPosition</code> to <code>endPosition</code> in the specified list to
+	 * the end of this AST.
+	 * 
+	 * @param args
+	 *            array containing elements to be added to this AST
+	 * @param startPosition
+	 *            the start position, inclusive.
+	 * @param endPosition
+	 *            the ending position, exclusive.
+	 * @return <tt>true</tt> if this AST changed as a result of the call
+	 * 
+	 */
+	public boolean appendAll(IExpr[] args, int startPosition, int endPosition);
+
 	/**
 	 * Appends all of the arguments (starting from offset <code>1</code>) in the specified AST to the end of this AST.
 	 *