From: Andrew Lorimer <andrew@lorimer.id.au>
Date: Sat, 8 Jun 2019 11:03:54 +0000 (+1000)
Subject: [methods] add CAS instructions for tangent function
X-Git-Tag: yr12~112
X-Git-Url: https://git.lorimer.id.au/notes.git/diff_plain/b8a3a4f804da2b163d7e0daad2b33d2be61392a8?hp=c8f299865df38d0381e51a4b8b7871aa90dfd5cb

[methods] add CAS instructions for tangent function
---

diff --git a/methods/calculus-ref.md b/methods/calculus-ref.md
index e12b37e..f333152 100644
--- a/methods/calculus-ref.md
+++ b/methods/calculus-ref.md
@@ -55,6 +55,8 @@ Not differentiable at:
 **Normal line** - $\perp$ tangent ($m_{{tan}} \cdot m_{\operatorname{norm}} = -1$)  
 **Secant** $={{f(x+h)-f(x)} \over h}$
 
+\colorbox{cas}{On CAS:} Action $\rightarrow$ Calculation $\rightarrow$ Line $\rightarrow$ `tanLine` or `normal`  
+
 ## Strictly increasing/decreasing
 
 For $x_2$ and $x_1$ where $x_2 > x_1$: