From 409d90011af8670be1cb06e43535b7c9d3e864a3 Mon Sep 17 00:00:00 2001
From: Chris Sangwin <C.J.Sangwin@ed.ac.uk>
Date: Wed, 17 Jul 2024 16:29:25 +0100
Subject: [PATCH] Update the docs.
---
.../Answer_Tests/Results/AlgEquiv.md | 29 ++++++++++++++++++-
doc/en/Authoring/Options.md | 2 +-
2 files changed, 29 insertions(+), 2 deletions(-)
diff --git a/doc/en/Authoring/Answer_Tests/Results/AlgEquiv.md b/doc/en/Authoring/Answer_Tests/Results/AlgEquiv.md
index 908be6522..9f47e2199 100644
--- a/doc/en/Authoring/Answer_Tests/Results/AlgEquiv.md
+++ b/doc/en/Authoring/Answer_Tests/Results/AlgEquiv.md
@@ -487,6 +487,33 @@ i/15))</pre></td>
<td class="cell c5">0</td>
<td class="cell c6"></td>
</tr>
+<tr class="pass">
+ <td class="cell c0">AlgEquiv</td>
+ <td class="cell c1"><span style="color:green;"><i class="fa fa-check"></i></span></td>
+ <td class="cell c2"><pre>'root(x)</pre></td>
+ <td class="cell c3"><pre>x^(1/2)</pre></td>
+ <td class="cell c4"></td>
+ <td class="cell c5">1</td>
+ <td class="cell c6"></td>
+</tr>
+<tr class="pass">
+ <td class="cell c0">AlgEquiv</td>
+ <td class="cell c1"><span style="color:green;"><i class="fa fa-check"></i></span></td>
+ <td class="cell c2"><pre>'root(x,m)</pre></td>
+ <td class="cell c3"><pre>x^(1/m)</pre></td>
+ <td class="cell c4"></td>
+ <td class="cell c5">1</td>
+ <td class="cell c6"></td>
+</tr>
+<tr class="pass">
+ <td class="cell c0">AlgEquiv</td>
+ <td class="cell c1"><span style="color:green;"><i class="fa fa-check"></i></span></td>
+ <td class="cell c2"><pre>x</pre></td>
+ <td class="cell c3"><pre>'root(x^2)</pre></td>
+ <td class="cell c4"></td>
+ <td class="cell c5">0</td>
+ <td class="cell c6"></td>
+</tr>
<tr class="pass">
<td class="cell c0">AlgEquiv</td>
<td class="cell c1"><span style="color:green;"><i class="fa fa-check"></i></span></td>
@@ -1661,7 +1688,7 @@ i,i),i,8)</pre></td>
</tr>
<tr class="pass">
<td class="cell c0"><td colspan="2"></td></td>
- <td class="cell c1"><td colspan="4">The following entries are incorrect, although they may appear in a simplified form from that which you actually entered. <span class="filter_mathjaxloader_equation"><span class="nolink">\[\left \{5-x > 0\,{\text{ and }}\, x-1 > 0 \right \}\]</span></span></td></td>
+ <td class="cell c1"><td colspan="4">The following entries are incorrect, although they may appear in a simplified form from that which you actually entered. <span class="filter_mathjaxloader_equation"><span class="nolink">\[\left \{5-x > 0\,{\text{ and }}\, x-1 > 0 \right \}\]</span></span></td></td>
</tr>
<tr class="notes">
<td class="cell c0"><td colspan="6">Equivalence for elements of sets is different from expressions: see docs.</td></td>
diff --git a/doc/en/Authoring/Options.md b/doc/en/Authoring/Options.md
index 4ee4ee92c..c04f24e1d 100644
--- a/doc/en/Authoring/Options.md
+++ b/doc/en/Authoring/Options.md
@@ -113,7 +113,7 @@ Do you really want to continue using \(\sqrt{}\) in your teaching? In his *Elem
A lot of elementary mathematics involves converting from one form to another and back again. Sometimes these forms have important differences of use, e.g. factored form or completed square form for a quadratic. However, sometimes these equivalent forms are more customary than because it *"manifestly corresponds with the nature of the thing"* in question. I digress...
-STACK defines an \(n\)th root function `root(x,n)` which is a noun form for \(\sqrt[n](x)\). This can be used by students, but if teachers wish to use this in question variables etc. then they must prefix this with the apostophie to create the nounform `'root(x,n)` to prevent immediate evaluation to `x^(1/n)`.
+STACK defines an \(n\)th root function `root(x,n)` which is a noun form for \(\sqrt[n]{x}\). This can be used by students, but if teachers wish to use this in question variables etc. then they must prefix this with the apostophie to create the nounform `'root(x,n)` to prevent immediate evaluation to `x^(1/n)`.
### sqrt(-1) {#sqrt_minus_one} ###
--
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