Add files via upload

Author: eyalsch

abc.ino

@@ -0,0 +1,22 @@
+double x1=0, y1=1, x2=3, y2=7, x3=-1, y3=7; // y=2x^{2}-4x+1
+
+void setup() {
+  Serial.begin(9600);
+  double a, b, c;
+
+	a = (x1*(y3-y2) + x2*(y1-y3) + x3*(y2-y1))/((x1-x2)*(x1-x3)*(x2-x3));
+	b = (y2-y1)/(x2-x1) - a*(x1+x2);
+	c = y1 - a*x1*x1 - b*x1;
+	
+    Serial.print("a = ");
+    Serial.println(a,5);
+    Serial.print("b = ");
+    Serial.println(b,5);
+    Serial.print("c = ");
+    Serial.println(c,5);
+
+}
+
+void loop() {
+
+}