Manual

Functions and commands 387
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)
Example:
crationalroot(2*x^3+(-5-7*i)*x^2+
(-4+14*i)*x+8-4*i)
returns
cumSum Accepts as argument either a list or a vector and returns a list
or vector whose elements are the cumulative sum of the
original argument.
cumSum(List) or cumSum(Vector)
Example:
cumSum([0,1,2,3,4]) returns [0,1,3,6,10]
cyan Used in the Symbolic view of the Geometry app. In the
definition of a geometric object, including the statement
“display=cyan” specifies that the object defined will be drawn
in light blue.
12
11
47





11
3
-------
33
631
-------------------
x
4 x
2
–
----------------



1
2
---
x 2–
------------
–
1
2
---
x 2+
-------------
–
3 i+
2
-----------
2 i 1 i+