Casio fx-50F Manual De Usuario

E-32

A Permutation ( 

Syntax: { 

}P{

}, { 

}C{

}

Example: How many four-person permutations and combinations are possible for a group 

of 10 people? 

101*(

P

)

4E

101/(

C

)

4E

A Rounding Function (Rnd) 

You can use the rounding function (Rnd) to round the value, expression, or calculation result 
specifi ed by the argument. Rounding is performed to the number of signifi cant digits in 
accordance with the number of display digits setting. 

The mantissa is rounded off to 10 digits. 

The value is rounded to the specifi ed number of digits. 

Example: 200 ÷ 7 × 14 = 400 

200/7*14E

(3 decimal places) 

1Ne1(Fix)3

(Internal calculation uses 15 digits.) 

200/7E

*14E

Now perform the same calculation using the rounding (Rnd) function. 

200/7E

(Calculation uses rounded value.) 

10(Rnd)E