HP Prime Graphing Wireless Calculator - Manual (Page 182)

178 Functions and commands
Example:
col
returns
[2,5,8]
colDim Returns the number of columns of a matrix.
colDim(Matrix)
Example:
colDim
returns
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)
companion Returns the companion matrix of a polynomial.
companion(Poly,Var)
Example:
companion(x^2+5x-7,x)
returns
compare Compares two objects and returns 1 if
type(Obj1)<type(Obj2) or if type(Obj1)=type(Obj2) and
Obj1<Obj2; otherwise, it returns 0.
compare(Obj1, Obj2)
Example:
compare(1,2)
gives
1
complexroot With a polynomial and a real as its two arguments, returns a
matrix. Each row of the matrix contains either a complex root
of the polynomial with its multiplicity or an interval containing
such a root and its multiplicity. The interval defines a (possibly)
rectangular region in the complex plane where a complex
root lies.
1 2 3
4 5 6
7 8 9
2 ,
 
 
 
 
 
1 2 3
4 5 6
 
 
 
0 7
1 5
–  
 
 