Casio FX-890P Owner's Manual page 60

FIX
PURPOSE: Returns the integer part of the argument.
FORMAT:
FIX (argument)
Numeric expression
The parenthesis enclosing the argument can be omitted when the argument is a
numeric value or variable.
EXAMPLE: FIX (-1.5)
PARAMETERS: argument : numeric expression
SEE: INT, FRAC
FRAC
PURPOSE: Returns the fractional part of the argument.
FORMAT:
FRAC (argument)
Numeric expression
The parenthesis enclosing the argument can be omitted when the argument is a
numeric value or variable.
EXAMPLE: FRAC (3.14)
PARAMETERS: argument : numeric expression
EXPLANATION:
1. Returns the fractional art of the argument.
2. The sign (±) of the value is the same as that for the argument.
SEE: INT, FIX
HYPACS
PURPOSE: Returns the value for which hyperbolic cosine (value) = argument.
FORMAT:
HYPACS (argument)
Numeric expression
The parenthesis enclosing the argument can be omitted when the argument is a
numeric value or variable.
EXAMPLE: HYPACS (150)
PARAMETERS: argument must be within the [1 , 5x10
EXPLANATION:
1. The mathematical formula for reverse hyperbolic cosine is :
acosh(x) = ln ( x + √
2. The returned value is in the [-230.2585092 , +230.2585092] range.
SEE: HYPCOS, LN
2
x – 1
) where ln is the natural logarithm .
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