From 8e94038480f6e5dda39e0c24500a86cc2a0a10bb Mon Sep 17 00:00:00 2001
From: Ganesh Niruban <gniruban88@gmail.com>
Date: Fri, 28 Jun 2019 10:12:08 +0100
Subject: [PATCH] Update cic.go

---
 cic.go | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/cic.go b/cic.go
index 15dedc9..2b9bec6 100644
--- a/cic.go
+++ b/cic.go
@@ -345,8 +345,41 @@ main()
 }
 }
 func calcVP() {
+var v float64
+var n float64
+var r float64
+vp:
+fmt.Print("Enter a Present Value of Annuity: ") 
+fmt.Scanf("%f\n", &v)
+if !(v > 0) {
+        fmt.Println("ERROR: you did not enter a number greater than zero")
+		goto vp
+} else {
+goto np}
+np:
+fmt.Print("Enter a Number of Periods: ") 
+fmt.Scanf("%f\n", &n)
+if !(n > 0) {
+        fmt.Println("ERROR: you did not enter a number greater than zero")
+		goto np
+} else {
+goto ir}
+ir:
+fmt.Print("Enter a Interest Rate per Period(%): ")
+fmt.Scanf("%f\n", &r)
+if !(r > 0) {
+        fmt.Println("ERROR: you did not enter a number greater than zero, or included a symbol")
+		goto ir
+} else {
 //Calculate value of each payment for annuity 
 //p = v × r / (1 − (1+r) ^ −n)
+tr := (r/100)+1
+tn := n*-1
+tp := math.Pow(float64(tr), float64(tn))
+p := ((r/100)/(1-tp))*v
+P := fmt.Sprintf("%.2f", p) 
+fmt.Println("Value of Each Payment for Annuity:£",P)
 counter++
 main()
 }
+}