HP 39gs User Manual page 167

INT
MANT
MAX
MIN
MOD
%
%CHANGE
Using mathematical functions
with a decimal fraction) to H.MMSSs format (time or
angle up to fractions of a second).
→HMS(x.x)
Example
→HMS(8.5) returns 8.3
Integer part.
INT(value)
Example
INT(23.2) returns 23
Mantissa (significant digits) of value.
MANT(value)
Example
MANT(21.2E34) returns 2.12
Maximum. The greater of two values.
MAX(value1, value2)
Example
MAX(210,25) returns 210
Minimum. The lesser of two values.
MIN(value1, value2)
Example
MIN(210,25) returns 25
Modulo. The remainder of value1/value2.
value1 MOD value2
Example
9 MOD 4 returns 1
x percent of y; that is, x/100*y.
%(x, y)
Example
%(20,50) returns 10
Percent change from x to y, that is, 100(y–x)/x.
%CHANGE(x, y)
13-15