Merge pull request steam-bell-92#160 from NileshRaut2601/fibbonacci

Added turtle graphics in Fibonacci-series

Author: steam-bell-92

math/Fibonacci-Series/Fibonacci-Series.py

@@ -1,15 +1,118 @@
-# 0,1,1,2,3,5,8,13,...
+import time
+import turtle
 
-print("🔢 Fibonacci Series Generator 🔢")
-print("📐 Pattern: 0, 1, 1, 2, 3, 5, 8, 13...\n")
 
-series = [0, 1]
-n = int(input("➡️  Enter number of terms: "))
+def build_fibonacci_series(term_count):
+    if term_count <= 0:
+        return []
 
-while len(series) < n:
-    series.append(series[-1] + series[-2])
+    series = [0]
 
-print("\n✨ Fibonacci Series:")
-print(" → ".join(map(str, series)))
+    if term_count == 1:
+        return series
 
-print(f"\n📊 Sum of {len(series)} terms: {sum(series)}")
+    series.append(1)
+
+    while len(series) < term_count:
+        series.append(series[-1] + series[-2])
+
+    return series
+
+
+def draw_dotted_arc(pen, screen, radius, extent, dot_color, dot_size=7, step_degrees=3, join_delay=0.008):
+    steps = max(1, int(abs(extent) / step_degrees))
+    arc_step = extent / steps
+
+    for _ in range(steps):
+        pen.dot(dot_size, dot_color)
+        pen.circle(radius, arc_step)
+        screen.update()
+        time.sleep(join_delay)
+
+
+def show_fibonacci_curve(series):
+   
+    curve_terms = series[1:13] if len(series) > 13 else series[1:]
+    if not curve_terms:
+        curve_terms = [0]
+
+    positive_values = [value for value in curve_terms if value > 0]
+    max_value = max(positive_values, default=1)
+    
+    scale = max(6, min(20, 200 // max_value if max_value else 6))
+
+    screen_height = 720
+    screen = turtle.Screen()
+    screen.title("Fibonacci Curve")
+    screen.bgcolor("white")
+    screen.setup(width=900, height=screen_height)
+    screen.tracer(0)
+
+    pen = turtle.Turtle()
+    pen.hideturtle()
+    pen.speed(0)
+    pen.penup()
+    pen.pensize(1)
+
+    title_y = screen_height // 2 - 40
+    pen.goto(0, title_y)
+    pen.color("#111827")
+    pen.write("Fibonacci Curve", align="center", font=("Arial", 18, "bold"))
+
+    pen.goto(0, title_y - 28)
+    pen.color("#374151")
+    pen.write("Drawing... (click to close when finished)", align="center", font=("Arial", 10, "normal"))
+
+    start_x = -120
+    start_y = -120
+    colors = ["#0ea5e9", "#10b981", "#f59e0b", "#f97316", "#8b5cf6"]
+
+    pen.goto(start_x, start_y)
+    pen.setheading(0)
+
+    for index, value in enumerate(curve_terms):
+        radius = max(10, value * scale) if value > 0 else 10
+        color = colors[index % len(colors)]
+        pen.pencolor(color)
+        draw_dotted_arc(pen, screen, radius, 90, color, dot_size=6, step_degrees=4, join_delay=0.004)
+        pen.left(90)
+
+    pen.penup()
+    pen.goto(0, start_y - 30)
+    pen.color("#111827")
+    pen.write("Done — click anywhere to close", align="center", font=("Arial", 10, "normal"))
+
+    screen.update()
+    screen.exitonclick()
+
+
+def main():
+    print("🔢 Fibonacci Series Generator 🔢")
+    print("📐 Pattern: 0, 1, 1, 2, 3, 5, 8, 13...\n")
+
+    while True:
+        try:
+            term_count = int(input("➡️  Enter number of terms: "))
+            if term_count <= 0:
+                print("❌ Please enter a positive whole number.\n")
+                continue
+            break
+        except ValueError:
+            print("❌ Invalid input! Please enter a whole number.\n")
+
+    series = build_fibonacci_series(term_count)
+
+    print("\n✨ Fibonacci Series:")
+    print(" → ".join(map(str, series)))
+    print(f"\n📊 Sum of {len(series)} terms: {sum(series)}")
+
+    try:
+        show_fibonacci_curve(series)
+    except turtle.Terminator:
+        print("\n⚠️ Turtle window was closed before drawing finished.")
+    except Exception as error:
+        print(f"\n⚠️ Graphical view could not be displayed: {error}")
+
+
+if __name__ == "__main__":
+    main()