HP Prime Graphing Calculator - Manual (Page 407)

Functions and commands 403
normal Returns the expanded irreducible form of an expression.
normal(Expr)
Example:
normal(2*x*2)
gives
4*x
normalize Returns a vector divided by its l 2 norm (where the l 2 norm is the
square root of the sum of the squares of the vector’s
coordinates).
normalize(Lst||Cplx)
Example:
normalize(3+4*i)
gives
(3+4*i)/5
NOT Returns the logical inverse of a Boolean expression.
not(Boolean)
NTHROOT Gives the expression for calculating the nth root of a number.
octahedron Draws an octahedron with center A and vertex B and such
that the plane ABC contains four vertices.
octahedron(Pnt(A),Pnt(B),Pnt(C))
odd Returns 1 if a given integer is odd, and returns 0 otherwise.
odd(Intg(n))
Example:
odd(6)
gives
0
open_polygon Draws a polygonal line with vertices at the elements of the
given list.
open_polygon(LstPnt||LstCplx)
OR Logical Or.
expr1 OR expr2
Example:
3 +1==4 OR 8 < 5
returns
1
.
order_size Returns the remainder (O term) of a series expansion:
limit(x^a*order_size(x),x=0)=0 if a>0.
order_size(Expr)