> ## Documentation Index
> Fetch the complete documentation index at: https://calcs.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Solvers

> Solvers you can call from Calcs Builder templates, from beams and frames to site data.

> **[Python Solvers](/docs/calcs-builder/python-solvers.md)**
>
> Comprehensive guide to Calcs.com Python solvers for structural analysis

> **[Beam Solver](/docs/calcs-builder/solvers/beam-solver.md)**
>
> Run 1D static analysis of beams and columns with the Beam Solver, including required inputs, stiffness and support parameters, and load combinations.

> **[Frame Solver](/docs/calcs-builder/solvers/frame-solver.md)**
>
> The Frame Solver adds structural frame analysis to Calcs.com Python solvers, covering load distribution, member forces, and integration with other solvers.

> **[Cross-Section Solver](/docs/calcs-builder/solvers/cross-section-solver.md)**
>
> Comprehensive guide to the cross-section solver for analyzing structural section properties using sectionproperties library

> **[pyCUFSM Solver](/docs/calcs-builder/solvers/pycufsm-solver.md)**
>
> Python implementation of the Constrained and Unconstrained Finite Strip Method solver

> **[Live Load Patterning](/docs/calcs-builder/solvers/live-load-patterning.md)**
>
> Guide to implementing live load patterning in beam solver analysis for optimized load combinations

> **[Base vs Expanded Load Combinations](/docs/calcs-builder/solvers/base-vs-expanded-load-combinations.md)**
>
> Understanding the difference between base and expanded load combinations in Calcs.com solvers

> **[Upgrade a Custom Calculator to Manage Loads (LRFD & ASD)](/docs/calcs-builder/solvers/factored-load-calculator.md)**
>
> Upgrade your custom calculator to manage loads and automatically calculate factored results based on ASCE 7 (LRFD or ASD).

> **[Test Solvers Without Localhost](/docs/calcs-builder/solvers/testing-solvers-without-localhost.md)**
>
> How to test Python solvers locally without setting up the full localhost development environment

> **[Known Solver Bugs & Limitations](/docs/calcs-builder/solvers/known-solver-bugs.md)**
>
> Current limitations and known issues in Calcs.com solvers with workarounds and explanations

### GIS and Site Solvers

> **[GIS Solvers](/docs/calcs-builder/solvers/gis-solvers.md)**
>
> Overview of Geographic Information System solvers available in Calcs.com

> **[Orography Solver](/docs/calcs-builder/solvers/orography-solver.md)**
>
> Analyze topographic features around a site for wind loading calculations according to Eurocode standards

> **[Roughness Point Solver](/docs/calcs-builder/solvers/roughness-point-solver.md)**
>
> Use the Roughness Point Solver to find terrain roughness at a latitude and longitude for Eurocode wind loading, with inputs and a remote widget example.

> **[USGS API Solver](/docs/calcs-builder/solvers/usgs-api-solver.md)**
>
> Retrieve seismic design parameters from the USGS Seismic Web Services API


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