HP Prime Graphing Calculator - Manual (Page 392)

386 Functions and commands
contains Given a list or vector and an element, returns the index of the
first occurrence of the element in the list or vector; if the
element does not appear in the list or vector, returns 0.
contains((List, Element) or contains(Vector,
Element)
Example:
contains({0,1,2,3},2) returns 3
CopyVar Copies the first variable into the second variable without
evaluation.
CopyVar(Var1,Var2)
correlation Returns the correlation of the elements of a list or matrix.
correlation(List) or correlation(Matrix)
Example:
correlation
returns
count Applies a function to the elements in a list or matrix and
returns their sum.
count(Function, List) or count(Function,
Matrix)
Example:
count((x→x,[2,12,45,3,7,78])
returns
147
covariance Returns the covariance of the elements in a list or matrix.
covariance(List) or covariance(Matrix)
Example:
covariance
returns
1 2
1 1
4 7
33
6 31 
-------------------
1 2
1 1
4 7
 
 
 
 
 
11
3
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