> For the complete documentation index, see [llms.txt](https://manual.karamba3d.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://manual.karamba3d.com/beta/2-getting-started/2-getting-started-1/setting-up-a-structural-analysis/2.2.5-choose-an-algorithm.md).

# 2.2.5 Choose an Algorithm

<figure><img src="/files/pchvfKMJs3F1e8wDiipz" alt=""><figcaption><p>Fig. 2.2.5.1: Deflection and stress-strength ratio of a cantilever beam with a point-load at its tip</p></figcaption></figure>

Karamba3D provides various options for analyzing a structural model. The **“Analyze”** component (see Fig. 2.2.5.1) calculates the deformation and stresses of a model under external loads. The **“Deformation”** slider in the **“Display Scales”** submenu of the **“ModelView”** component allows scaling the graphical output of the displacements. The default magnification factor is 50, but this can be adjusted if the numeric range of the **“Deformation”** slider does not fit.

{% hint style="info" %}
Double-clicking the knob of the slider opens a window for adjusting the slider settings.
{% endhint %}

To obtain the numerical values corresponding to the colors of the utilization output, use the **“Legend”** component as shown in Fig. 2.2.5.1. The stress-wise utilization output of the **“BeamView”** component is calculated by dividing the normal stress at a point of the cantilever by the strength of its material. Negative values indicate compression, while positive values indicate tension.

However, stress-wise utilization can be misleading. Slender beams under axial compression may buckle and collapse before the compressive stresses reach the material strength. In such cases, use the **“Utilization”** component, which includes stability considerations.


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