Added flip vertically/horizontally and removeQubit methods

Author: perak

lib/quantum-circuit.js

@@ -34,7 +34,7 @@ var formatFloat = function(f, options) {
 	var s = f + "";
 
 	if(options.fixedWidth) {
-		s = f.toFixed(options.decimalPlaces);
+		s = f.toFixed(options.decimalPlaces || 14);
 	}
 
 	var plusChar = options.plusChar;
@@ -3560,6 +3560,58 @@ QuantumCircuit.prototype.removeTrailingRows = function() {
 	}
 };
 
+QuantumCircuit.prototype.removeQubit = function(wire) {
+	if(!this.gates[wire]) {
+		return;
+	}
+
+	this.resetState();
+
+	var numCols = this.numCols();
+	for(var col = 0; col < numCols; col++) {
+		this.removeGateAt(col, wire);
+	}
+
+	for(var w = wire + 1; w < this.numQubits; w++) {
+		for(var col = 0; col < numCols; col++) {
+			this.gates[w - 1][col] = this.gates[w][col];
+		}
+	}
+
+	this.gates.pop();
+	this.numQubits--;
+};
+
+
+QuantumCircuit.prototype.flipVertically = function() {
+	this.resetState();
+
+	var numCols = this.numCols();
+	var lastQubit = this.numQubits - 1;
+	for(var w = 0; w < this.numQubits / 2; w++) {
+		for(var col = 0; col < numCols; col++) {
+			var tmp = this.gates[w][col];
+			this.gates[w][col] = this.gates[lastQubit - w][col];
+			this.gates[lastQubit - w][col] = tmp;
+		}
+	}
+};
+
+QuantumCircuit.prototype.flipHorizontally = function() {
+	this.resetState();
+
+	var numCols = this.numCols();
+	var lastCol = numCols - 1;
+	for(var w = 0; w < this.numQubits; w++) {
+		for(var col = 0; col < numCols / 2; col++) {
+			var tmp = this.gates[w][col];
+			this.gates[w][col] = this.gates[w][lastCol - col];
+			this.gates[w][lastCol - col] = tmp;
+		}
+	}
+};
+
+
 
 QuantumCircuit.prototype.applyTransform = function(U, qubits) {
 	var newState = {};