[spec] integrals on CAS

diff --git a/spec/calculus.md b/spec/calculus.md
index b89eae68a78eddb15321a703067953204a1ade78..8b4fcb856c09294cff6b5860d463d92626c9a5ac 100644 (file)
--- a/spec/calculus.md
+++ b/spec/calculus.md
@@ -306,8 +306,13 @@ Use identities:
 
 ## Partial fractions
 
 
 ## Partial fractions
 

-On CAS: Action $\rightarrow$ Transformation $\rightarrow$ `expand/combine`
+On CAS: Action $\rightarrow$ Transformation $\rightarrow$ `expand/combine`  
+or Interactive $\rightarrow$ Transformation $\rightarrow$ `expand` $\rightarrow$ Partial

 
 

+## Graphing integrals on CAS
+
+In main: Interactive $\rightarrow$ Calculation $\rightarrow$ $\int$ ($\rightarrow$ Definite)  
+Restrictions: `Define f(x)=...` $\rightarrow$ `f(x)|x>1` (e.g.)

 
 ## Applications of antidifferentiation
 
 
 ## Applications of antidifferentiation