💻 Simple Interest Calculator

Complete Code

def si_calculator():
    print("💰 Simple Interest Calculator")
    print("Formula: SI = (P × R × T) / 100")
    print("-" * 38)

    try:
        P = float(input("मूलधन — Principal (₹): "))
        R = float(input("ब्याज दर — Rate (%): "))
        T = float(input("समय — Time (years): "))

        SI    = (P * R * T) / 100
        total = P + SI

        print(f"\n{'='*38}")
        print(f"  मूलधन (P):        ₹{P:>10,.2f}")
        print(f"  ब्याज दर (R):     {R:>10}%")
        print(f"  समय (T):          {T:>10} years")
        print(f"{'─'*38}")
        print(f"  साधारण ब्याज:    ₹{SI:>10,.2f}")
        print(f"  कुल राशि:        ₹{total:>10,.2f}")
        print(f"{'='*38}")
    except ValueError:
        print("❌ सही number डालें!")

si_calculator()

यह Code कैसे काम करता है?

📋 Project ka Introduction

🧠 Is Project mein kya seekhoge?

📝 Code kaise kaam karta hai — Step by Step

1. Problem samjho: Simple Interest Calculator mein kya karna hai
2. Required variables aur data structures decide karo
3. Logic step-by-step likhó
4. Code mein implement karo
5. Test karo aur bugs fix karo

⚠️ Common Mistakes — Bhool mat jaana!

• ⚠️ Indentation sahi rakho — Python mein spaces matter karti hain
• ⚠️ Variables ko use se pehle define karo
• ⚠️ Input ko int()/float() mein convert karo agar number chahiye
• ⚠️ Edge cases handle karo — kya hoga agar user galat input de?

🏋️ Practice Exercises — Aage badho!

• 💡 Simple Interest Calculator mein naya feature add karo
• 💡 Code ko functions mein refactor karo
• 💡 Error handling improve karo
• 💡 File mein data save karo

❓ Aksar Pooche Jane Wale Sawal (FAQ)