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14-14 Sistema de Álgebra Computacional (CAS)
PARTFRAC Expansão parcial de frações
PARTFRAC tem como argumento uma fração racional.
PARTFRAC devolve a decomposição dessa fração
racional em frações parciais.
Exemplo
Para decompor uma fração racional em frações parciais,
como:
utiliza-se o comando PARTFRAC.
Nos modos real e direto, isso produz:
No modo complexo, isso produz:
QUOTE Expressão entre aspas
QUOTE(expressão) é utilizado para excluir uma
expressão durante a avaliação ou a simplificação.
Exemplo
Digitar:
resulta:
+
Exemplo
Digitar:
SUBST(QUOTE(CONJ(Z)),Z=1+i)
resulta:
CONJ(1+i)
x
5
2 x
3
1+
x
4
2 x
3
2+ x
2
2 x 1+()
-------------------------------------------------------------------------
x 2
x 3
2 x
2
2+
----------------------
1
2 x 2
-------------------
++ +
x 2
13i
4
--------------
xi+
--------------
1
2
------
x 1
-----------
13i+
4
--------------
xi
--------------
++ + +
lim QUOTE 2X 1()( EXP(
1
X
---
1 ) X +=,
⎝⎠
⎛⎞
210


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