# Core/Basics

## Difference Between Recursion and Iteration

[Read more](/content/blogs/learn/difference-between-recursion-and-iteration/index.html)

## Loop Invariant Condition

[Read more](/content/blogs/learn/loop-invariant-condition-examples-sorting-algorithms/index.html)

## How to Write Pseudocode

[Read more](/content/blogs/learn/how-to-write-pseudocode/index.html)

## Adding a New Column to an Existing Data Frame in Pandas

[Read more](/content/blogs/learn/adding-new-column-to-existing-dataframe-in-pandas/index.html)

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