diff --git a/examples/basic.cpp b/examples/basic.cpp
index 2b02f27..2dc34c7 100644
--- a/examples/basic.cpp
+++ b/examples/basic.cpp
@@ -7,31 +7,38 @@
 
 int main() 
 {
-	// Prepare data.
-	int n = 5000;
-	std::vector<double> x(n), y(n), z(n), w(n,2);
-	for(int i=0; i<n; ++i) {
-		x.at(i) = i*i;
-		y.at(i) = sin(2*M_PI*i/360.0);
-		z.at(i) = log(i);
-	}
+    // Prepare data.
+    int n = 5000;
+    std::vector<double> x(n), y(n), z(n), w(n,2);
+    for(int i=0; i<n; ++i) {
+        x.at(i) = i*i;
+        y.at(i) = sin(2*M_PI*i/360.0);
+        z.at(i) = log(i);
+    }
+    
+    // Set the size of output image = 1200x780 pixels
+    plt::figure_size(1200, 780);
 
-	// Plot line from given x and y data. Color is selected automatically.
-	plt::plot(x, y);
-	// Plot a red dashed line from given x and y data.
-	plt::plot(x, w,"r--");
-	// Plot a line whose name will show up as "log(x)" in the legend.
-	plt::named_plot("log(x)", x, z);
+    // Plot line from given x and y data. Color is selected automatically.
+    plt::plot(x, y);
 
-	// Set x-axis to interval [0,1000000]
-	plt::xlim(0, 1000*1000);
+    // Plot a red dashed line from given x and y data.
+    plt::plot(x, w,"r--");
 
-	// Add graph title
-	plt::title("Sample figure");
-	// Enable legend.
-	plt::legend();
-	// save figure
-	const char* filename = "./basic.png";
-	std::cout << "Saving result to " << filename << std::endl;;
-	plt::save(filename);
+    // Plot a line whose name will show up as "log(x)" in the legend.
+    plt::named_plot("log(x)", x, z);
+
+    // Set x-axis to interval [0,1000000]
+    plt::xlim(0, 1000*1000);
+
+    // Add graph title
+    plt::title("Sample figure");
+
+    // Enable legend.
+    plt::legend();
+
+    // save figure
+    const char* filename = "./basic.png";
+    std::cout << "Saving result to " << filename << std::endl;;
+    plt::save(filename);
 }