HP Prime Graphing Calculator - Manual (Page 383)

Functions and commands 379
col Returns the column of index n of a matrix.
col(Mtrx,n)
Example:
col([[1,2,3],[4,5,6],[7,8,9]],1)
gives
[2,5,8]
colDim Returns the number of columns of a matrix.
colDim(Mtrx)
Example:
coldim([[1,2,3],[4,5,6]])
gives
3
comDenom Rewrites a sum of rational fractions as a one rational fraction.
The denominator of the one rational fraction is the common
denominator of the rational fractions in the original
expression. With a variable as second argument, the
numerator and denominator are developed according to it.
comDenom(Expr,[Var])
Example:
comDenom(1/x+1/y^2+1)
gives
(x*y^2+x+y^2)/
(x*y^2)
common_perpend
icular
Draws the common perpendicular of the lines D1 and D2.
common_perpendicular(Line(D1),Line(D2))
companion Returns the companion matrix of a polynomial.
companion(Poly,Var)
Example:
companion(x^2+5x-7,x)
gives
[[0,7],[1,-5]]
compare Compares objects, and returns 1 if type(arg1)
if type(arg1)=type(arg2) and arg1
otherwise.
compare(Obj(arg1),Obj(arg2))
Example:
compare(1,2)
gives
1
complexroot With two arguments, returns vectors, each of which is either a
complex root of the polynomial P with its multiplicity or an
interval the boundaries of which are the opposite vertices of
a rectangle with sides parallel to the axis and containing a
complex root of the polynomial with the multiplicity of this
root. With four arguments, returns vectors described as for