From 01b46c5afe2435f13a0f9ba402dadb438334f753 Mon Sep 17 00:00:00 2001
From: Harshil Darji <darjiharshil2994@gmail.com>
Date: Wed, 12 Oct 2016 00:03:09 +0530
Subject: [PATCH] 12 Oct

---
 .../Secant_method.CPP                         | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Computer Oriented Statistical Methods/Secant_method.CPP

diff --git a/Computer Oriented Statistical Methods/Secant_method.CPP b/Computer Oriented Statistical Methods/Secant_method.CPP
new file mode 100644
index 000000000..aedf19a02
--- /dev/null
+++ b/Computer Oriented Statistical Methods/Secant_method.CPP	
@@ -0,0 +1,49 @@
+#include<iostream.h>
+#include<conio.h>
+#include<math.h>
+
+float eq(float i)
+{
+	return (pow(i,3)-(4*i)-9);                 // original equation
+}
+
+void main()
+{
+	float a,b,z,c,m,n;
+	clrscr();
+	for(int i=0;i<100;i++)
+	{
+		z=eq(i);
+		if(z>=0)
+		{
+			b=i;
+			a=--i;
+			goto START;
+		}
+	}
+
+	START:
+
+	cout<<"\nFirst initial: "<<a;
+	cout<<"\nSecond initial: "<<b;
+	for(i=0;i<100;i++)
+	{
+		float h,d;
+		m=eq(a);
+		n=eq(b);
+
+		c=((a*n)-(b*m))/(n-m);
+		a=b;
+		b=c;
+
+		z=eq(c);
+		if(z > 0 && z<0.09)			// stoping criteria
+		{
+			goto END;
+		}
+	}
+
+	END:
+	cout<<"\n\nRoot: "<<c;
+	getch();
+}