HP 10413 Datasheet download pdf (Page 293)

293

S

S

o

o

l

l

u

u

t

t

i

i

o

o

n

n

o

o

f

f

m

m

a

a

t

t

r

r

i

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x

x

e

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q

q

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a

a

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Solve for the value of X in

(2)

A

IXB

−

=

where

23 3 2

,

15 1 4

AB









−

==

−

Store the values of A

and B into M1 and M2 respectively.

Finally use the HOME view to calculate the

answer, using the function IDENMAT(2) to

produce a 2x2 identity matrix, and making sure

to store the result into M3.

In this case the result is a horrible decimal.

The fractional equivalent can be found by

setting the MODES view to Decimal 6 and then

re-evaluating, as shown right. From this it can

be seen that the common denominator seems

to be 26, so multiplying M3 by 26 will give a

final result of:

122

57

X



=



−



()

1

1

1

(1 2 )

12

2

1

2

AXB

XAB

XABI

X

AB I

−

−

−

−

=

−=

−= −

−

=

−

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