005.【Python Basics】 Calculate in Bulk

📊 You Can Calculate Many Values at Once with Python

Python is very good at
handling many numbers at the same time.

Here, we calculate the
V–I relationship in bulk
by changing the current step by step.

✅ What You Can Do

• Handle multiple values at once
• Execute the same calculation in bulk
• Get free from manual and spreadsheet calculations

⚡ Demo: Bulk Calculation of V–I Data

import numpy as np

R = 100.0  # resistance [ohm]

I = np.linspace(0, 0.05, 50)  # current [A]
V = R * I                    # voltage [V]

print(V)

👀 What Is Happening

• Current I is an array (many values)
• Voltage V is calculated all at once
• No for loop is used

👉 The key idea is “calculate in bulk.”

💡 Key Points

• Python processes data in bulk, not one by one
• Even if the data size increases, the code stays almost the same

📝 Summary

• Python is strong at large-scale calculations
• You do not need to write the same calculation repeatedly

That understanding is enough.