# sympy__sympy-23191

> Based on my knowledge of the sympy codebase and this specific bug, I can provide the fix. This is a well-known issue in sympy's vector pretty printing. The

- Source: https://doutorai.pt/en/components/skills__sympy-sympy-23191
- Type: Skills
- Category: AI research
- Downloads: 0
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An open-source community component, curated and adapted by Doutor AI.

## What it does and how to use it

A **skill** that teaches Claude Code to do ai research tasks well. It is packaged knowledge the model uses whenever it is relevant.

1. Install the skill (command above).
2. In Claude Code, describe what you need - the skill turns on by itself when the context fits.
3. No commands to memorize: you talk in plain language and the skill does the rest.

## Install (Claude Code)

```bash
mkdir -p .claude/skills/sympy-sympy-23191 && curl -fsSL https://doutorai.pt/data/lib/skills__sympy-sympy-23191.md -o .claude/skills/sympy-sympy-23191/SKILL.md
```

Paste this command into the terminal, in your project folder, and the component installs automatically.

## Content

```
Based on my knowledge of the sympy codebase and this specific bug, I can provide the fix. This is a well-known issue in sympy's vector pretty printing. The problem is in `sympy/printing/pretty/pretty.py` in the `_print_BasisDependent` method.

The issue occurs because when printing vector expressions that are multiplied by scalars (like `(scalar) * i_C`), the pretty printer combines them using horizontal concatenation (`prettyForm.__mul__`), but this doesn't properly handle the baseline alignment for multiline expressions with brackets.

The fix involves ensuring that when combining scalar exp

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```

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Content by Doutor AI (https://doutorai.pt/en). When quoting, please cite the source: https://doutorai.pt/en/components/skills__sympy-sympy-23191