HP Prime Graphing NW280AAABA manual A2qMatrix, Var1, Var2…, A2q1,2,4,4,x,y returns x2+6*x*y+4*y2

<> Inequality test. Returns 1 if the inequality is true, and 0 if the inequality is false.

=Equality symbol. Connects two members of an equation.

==Equality test. Returns 1 if the left side and right side are equal, and 0 otherwise.

>Strict greater than inequality test. Returns 1 if the left side of the inequality is greater than the right side, and 0 otherwise. Note that more than two objects can be compared. See comment above regarding <.

>= Greater than or equal inequality test. Returns 1 if the left side of the inequality is greater than the right side or if the two sides are equal, and 0 otherwise. Note that more than two objects can be compared. See comment above regarding <.

^Power symbol. Raises a number to a power or a matrix to an integer power.

a2q Given a symmetric matrix and a vector of variables, returns the quadratic form of the matrix using the variables in the vector.

a2q(Matrix, [Var1, Var2….])

Example:

a2q([[1,2],[4,4]],[x,y]) returns x^2+6*x*y+4*y^2

abcuv Given three polynomials A, B, and C, returns U and V such that A*U+B*V=C. With a variable as the final argument, U and V are expressed in terms of that variable (if needed); otherwise, x is used.

abcuv(PolyA, PolyB, PolyC, [Var])

Example:

abcuv(x^2+2*x+1,x^2-1,x+1) returns [1/2 -1/2]

additionally Used in programming with assume to state an additional assumption about a variable.

Example:

assume(n,integer);

additionally(n>5);

Functions and commands 381