User manual - fx-5800P
E-53
Syntax: Int({
n
})
Example: To  extract the integer part of –1.5
b
z
 – {MATH} 
c
2
(Int)
-
1.5)
E
A
 Fractional Part Extraction (Frac)
The Frac( function extracts the fractional part of the real number input as its argument.
Syntax: Frac( {
n
})
Example: To  extract the fractional part of –1.5
b
z
 – {MATH} 
c
3
(Frac) 
-
1.5)
E
A
 Largest Integer (Intg)
The Intg( function determines the largest integer that does not exceed the real number input 
as its argument. 
Syntax: Intg({
n
})
Example: To  determine the largest integer that does not exceed –1.5
b
z
 – {MATH} 
c
4
(Intg)
-
1.5)
E
Using Engineering Notation
k
 Using 10 
3
 Engineering Notation (ENG)
Engineering notation (ENG) expresses quantities as a product of a positive number between 
1 and 10 and a power of 10 that is always a multiple of three. There are two functions that 
you can use to convert a number to engineering notation, ENG
/
 and ENG
,
.
Function Key Operation 
ENG
/
1
/
(ENG)
ENG
,
1
*
(
ENG
)










