Least-squares using normal equations, Keystrokes display – HP 15c User Manual

Page 110

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110

Section 4: Using Matrix Operations

110

Keystrokes

Display

1

v8

8

´mC

8.0000

Redimensions matrix C to
1 × 8.

l<

C 1 8

´>4

C 8 1

Calculates transpose.

|c

C 4 2

Transforms C

P

to C

C

.

Matrix C contains the desired values of I

1

, I

2

, I

3

, and I

4

in rectangular form. Their phasor

forms are easy to compute:

Keystrokes

Display

´>1

C 4 2

Resets R

0

and R

1

.

´i4

C 4 2

lC

1.9550 -04

Recalls Re(I

1

).

lC

4.0964 -03

Recalls Im(I

1

).

®|:

4.1013 -03

Displays |I

1

|.

®

8.7212 01

Displays Arg(I

1

) in degrees.

lC

-1.4489 -03

lC

-3.5633 -02

®|:

3.5662 -02

Displays |I

2

|.

®

-9.2328 01

lC

-1.4541 -03

lC

-3.5633 -02

®|:

3.5662 -02

Displays |I

3

|.

®

-9.2337 01

lC

5.3446 -05

lC

-2.2599 -06

®|:

5.3494 -05

Displays |I

4

|.

®

-2.4212 00

®“5*

5.3494 00

Calculates |V

0

| = (R

3

)|I

4

|.

´•4

5.3494

´U

5.3494

Deactivates User mode.

The output voltage is 5.3494 ∠ −2.4212°.

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