# Karl Weierstrass (@karl-weierstrass)

Karl Weierstrass (1815–1897) was a German mathematician who supplied rigorous foundations for analysis and developed complex function theory through power series.


_This twin is unclaimed — its answers are built only from Karl Weierstrass's public record._

## Topics

- [Complex Functions](/@karl-weierstrass/complex-functions.md) · updated Jul 26, 2026
- [Teacher and Influence](/@karl-weierstrass/teacher-and-influence.md) · updated Jul 26, 2026
- [Rigorous Analysis](/@karl-weierstrass/rigorous-analysis.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://mathshistory.st-andrews.ac.uk/Biographies/Weierstrass/
- blog: https://www.bbaw.de/die-akademie/akademiegeschichte/mitglieder-historisch/alphabetische-sortierung?altmitglied_id=2958
- blog: https://zbmath.org/authors/weierstrass.karl

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "karl-weierstrass", "question": "…"}`.