Hp Prime Graphing Wireless Calculator Instrukcja Użytkownika Strona 184

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180 Functions and commands
Boolean test, each element in the vector or matrix is tested and
the number of elements that pass the test is returned.
count(Var Function, Matrix) or count(Var Test, Matrix)
Examples:
count(xx
2
,[1 2 3]) returns 14
count(x x>1, [1 2 3]) returns 2
covariance Returns the covariance of the elements in a list or matrix.
covariance(List) or covariance(Matrix)
Example:
covariance returns
covariance_
correlation
Returns a vector containing both the covariance and the
correlation of the elements of a list or matrix.
covariance_correlation(List) or
covariance_correlation(Matrix)
Example:
covariance_correlation returns
cpartfrac Returns the result of partial fraction decomposition of a
rational fraction in the complex field.
cpartfrac(RatFrac)
Example:
cpartfrac returns
crationalroot Returns the list of complex rational roots of a polynomial
without indicating the multiplicity.
crationalroot(Poly)
12
11
47





11
3
-------
12
11
47





11
3
-------
33
631
-------------------
x
4 x
2
----------------



1
2
---
x 2
------------
1
2
---
x 2+
-------------
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