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# Re: [libreoffice-users] Exponential Power and Square Root Notations in Calc Formulae

```At 17:23 24/09/2020 -0400, Vince Bonly wrote:
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```LO: Version: 6.4.6.2 ...
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I am working with the Law of Sines and the Law of Cosines, and need to use formulas within Calc that include exponential powers. So, how is [...] written in Calc formulas notation?
```1. n Squared
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See Lesson One in "How to use a spreadsheet program" - or perhaps Lesson One in Elementary Mathematics.
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```2. A = *sin*^*-1* **[ a*sin(B) / b ]
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Impossible. First, most of those asterisks make no sense. And the sine function makes no sense without any argument. Or do you mean what is in square brackets (stripped of some asterisks) to be the argument of the arcsine function?
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```3. Square Root of n
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See "square root" in the built-in help text. Or perhaps search
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https://help.libreoffice.org/6.2/en-GB/text/scalc/main0000.html . Or possibly see the answer to 1.
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Brian Barker
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