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Sistema de Álgebra Computacional (CAS) 14-33
SINCOS Transforma exponenciais complexas em seno e
coseno
SINCOS tem como argumento uma expressão contendo
exponenciais complexas.
Depois, SINCOS reescreve essa expressão em termos de
sin(x) e cos(x).
Digitar:
SINCOS(EXP(i·X))
resulta, depois de trocar para o modo complexo, se for
necessário:
cos(x) + i · sin(x)
SIMPLIFY Simplificar
SIMPLIFY simplifica uma expressão automaticamente.
Digitar:
resulta, depois de simplificação:
4 · cos(x)
2
2
XNUM Avaliação de números reais
XNUM tem como parâmetro uma expressão.
XNUM coloca a calculadora no modo aproximado e
retorna o valor numérico da expressão.
Digitar:
XNUM(2)
resulta:
1,41421356237
XQ Aproximação racional
XQ tem como parâmetro uma expressão numérica real.
XQ coloca a calculadora no modo exato e fornece uma
aproximação real ou racional da expressão.
Digitar:
XQ(1,41421)
SIMPLIFY
SIN 3 X()SIN 7 X()+
SIN 5 X()
-----------------------------------
⎝⎠
⎛⎞
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