Example – HP Prime Graphing Calculator User Manual
Page 418
412
Functions and commands
reduced_conic
Takes a conic expression and returns a vector with the
following items:
•
The origin of the conic
•
The matrix of a basis in which the conic is reduced
•
0 or 1 (0 if the conic is degenerate)
•
The reduced equation of the conic
•
A vector of the conic’s parametric equations
reduced_conic(Expr, [Vector])
Example:
reduced_conic(x^2+2*x-2*y+1) returns
ref
Returns the solution to a system of linear equations written in
matrix form.
ref(Matrix)
Example:
ref
returns
remove
Given an element and a list or vector, removes any occurrence
of that element in the list or vector and returns the result.
remove(Element, Vector) or
remove(Element, List)
Example:
remove(6,[1 2 6 7]) returns [1 2 7]
reorder
Given an expression and a vector of variables, reorders the
variables in the expression according to the order given in the
vector.
reorder(Expr, Vector)
Example:
reorder(x
2
+2*x+y
2
,[y,x]) gives y
2
+x
2
+2*x
x
i
x
x
i
y
x
x
x
x
i
x
x
i
x
y
)
(
2
1
)
(
1
1
2
2
1
.
0
4
4
2
1
1
2
1
0
1
1
0
0
1
2
2
3 1 2
–
3 2 2
1 1
3
--- 2
–
3
------
0 1 2