HP Prime Graphing NW280AAABA List1.*List2 or Matrix1.*Matrix2, List.Integer or Matrix.Integer

+Addition symbol. Returns the sum of two numbers, the term-by- term sum of two lists or two matrices, or adds two strings together.

−Subtraction symbol. Returns the difference of two numbers, or the term-by-term subtraction of two lists or two matrices.

.* List or matrix multiplication symbol. Returns the term-by-term multiplication of two lists or two matrices.

List1.*List2 or Matrix1.*Matrix2

Example:

[[1,2],[3,4]].*[[3,4],[5,6]] gives [[3,8],[15,24]]

./ List or matrix division symbol. Returns the term-by-term division of two lists or two matrices.

.^ Returns the list or matrix where each term is the corresponding term of the list or matrix given as argument, raised to the power n.

List.^Integer or Matrix.^Integer

/Division symbol. Returns the quotient of two numbers, or the term by term quotient of two lists. For division of a matrix by a square matrix, returns the left-multiplication by the inverse of the square matrix.

:= Stores the evaluated expression in the variable. Note that:= cannot be used with the graphics variables G0–G9. See the command BLIT.

var:=expression

Example:

A:=3 stores the value 3 in the variable A

<Strict less-than-inequality test. Returns 1 if the left side of the inequality is less than the right side, and 0 otherwise. Note that more than two objects can be compared. Thus 6 < 8 < 11 returns 1 (because it is true) whereas 6 < 8 < 3 returns 0 (as it is false).

<= Less than or equal inequality test. Returns 1 if the left side of the inequality is less 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 <.

380 Functions and commands