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Merge pull request #434 from elsaminsut/elsaminsut/TAN-typo

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docs: fix typo in TAN function page
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Daniel González-Albo
2025-08-12 18:19:48 +02:00
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docs/src/functions/math_and_trigonometry/tan.md
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@@ -33,7 +33,7 @@ TAN returns a unitless [number](/features/value-types#numbers) that is the trigo
* The figure below illustrates the output of the TAN function for angles $x$ in the range -2$π$ to +2$π$. * The figure below illustrates the output of the TAN function for angles $x$ in the range -2$π$ to +2$π$.
<center><img src="/functions/images/tangent-curve.png" width="350" alt="Graph showing tan(x) for x between -2π and +2π."></center> <center><img src="/functions/images/tangent-curve.png" width="350" alt="Graph showing tan(x) for x between -2π and +2π."></center>
* Theoretically, $\text{tan}(x)$ is undefined for any critical $x$ that satisfies $x = \frac{\pi}{2} + k\pi$ (where $k$ is any integer). However, an exact representation of the mathmatical constant $\pi$ requires infinite precision, which cannot be achieved with the floating-point representation available. Hence, TAN will return very large or very small values close to critical $x$ values. * Theoretically, $\text{tan}(x)$ is undefined for any critical $x$ that satisfies $x = \frac{\pi}{2} + k\pi$ (where $k$ is any integer). However, an exact representation of the mathematical constant $\pi$ requires infinite precision, which cannot be achieved with the floating-point representation available. Hence, TAN will return very large or very small values close to critical $x$ values.
## Examples ## Examples
[See some examples in IronCalc](https://app.ironcalc.com/?example=tan). [See some examples in IronCalc](https://app.ironcalc.com/?example=tan).