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Vector math commands, Vector math commands -4 – HP 48g Graphing Calculator User Manual

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Press

( M T H 1

V E

U

T

R V

. The returned values are the same as

the displayed components.

13

Vector Math Commands

A vector, like a real number, is a single object. So you can use vectors

as arguments for commands. You can add and subtract vectors—

you can multiply and divide vectors by scalars—and you can execute

special vector commands (DOT, CROSS, and ABS). These special

commands interpret their arguments and return results using the
current coordinate mode and can be found in the MTH VECTR

menu((MTH)

V E C T R ) .

Command/Description

Example

Input

Output

ABS

Prefix.

Returns the

scalar magnitude of vector,

calculated as the Frobenius

norm—defined as the square
root of the sum of the
squares of the

absolute value

of each element.

r 2

”3 4 ]

1“ 5^3051640

DOT

Command.

Returns

the inner or dot product (a
scalar) of two vectors of
equal dimensions.

l;C “1 28 ]

l: 24

CROSS

Command.

Returns the cross product (a
3D-vector) of two vectors.

Two element vectors will

have a third zero element

added during execution.

l;C “1 2 1 ]

13-4 Vectors and Transforms

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