Geometric Seri is Sum Calculator

How to use it

1. Enter a1: 1
2. Enter r: 2
3. Enter n: 10
4. Calculate and display the sum result

Common mistakes

• ⚠️ Not verifying input values are within realistic ranges for your scenario
• ⚠️ Entering zero or negative values where positive numbers are required
• ⚠️ Rounding intermediate results too early in multi-step calculations

Worked example

Calculate sum of 2, 4, 8, 16 with r=2.

The calculated result provid is the main output value.

Input guide