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Casio FX500ES Manual

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S-49
3. Fracciones: a
b
/c
4. Símbolo de prefijo: (–) (signo negativo)
5. Cálculo de valor estimado estadístico: m, n, m1 y m2
6. Permutación, combinación: nPr, nCr
7. Multiplicación y división: ×, ÷
La multiplicación en donde se omite el signo: El signo de multiplicación se
omite inmediatamente antes de π, e, variables (2π, 5A, πA, etc.), funciones
con paréntesis (2'(3), Asin(30), etc.)
8. Suma y resta: +, –
Si un cálculo contiene un valor negativo, puede necesitar encerrar el valor negativo
entre paréntesis. Si desea elevar al cuadrado el valor –2, por ejemplo, necesita
ingresar: (–2)
2
. Esto se debe a que x
2
es una función precedida por un valor
(Prioridad 2, anterior), cuya prioridad es mayor que el signo negativo, que es un
símbolo de prefijo (Prioridad 4).
Ejemplo:
y2w= –2
2
= –4
(y2)w= (–2)
2
= 4
La multiplicación y división, y la multiplicación en donde el signo es omitido tienen
la misma prioridad (Prioridad 7), de manera que estas operaciones se realizan
de izquierda a derecha cuando ambos tipos son mezclados en el mismo cálculo.
Encerrando una operación dentro de paréntesis ocasiona que sea llevado a cabo
primero, de manera que el uso de paréntesis puede resultar en resultados de
cálculos diferentes.
Ejemplo:
1/215(π)= 1 ÷ 2π = 1,570796327
1/(215(π))= 1 ÷ (2π) = 0,1591549431
k Limitaciones de estrato de registro
Esta calculadora utiliza áreas de memoria, llamadas “estratos de registro” para
el almacenamiento temporario de valores de secuencia de prioridad de cálculo,
comandos y funciones. El
estrato de registro numérico
tiene 10 niveles y el
estrato
de registro de comandos
tiene 24 niveles, como se muestra en la ilustración
siguiente.
1
2
3
45
1 2 3 4 5 6
7
Estrato de
registro numérico
Estrato de registro
de comandos
҂
ѿ
1
2
3
4
҂
ѿ
5
6
7
1
2
3
2
3
4
4
5
5
4
… 51 …


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