Casio FX-795P

186
CHAPTER
7.
Command
Reference
F
R
A
Cc
Numan
aipresion
|
©
Function:
Obtains
the
decimal
part
of
a
given
argument.
Parameter:
Argument:
Numeric
expression.
Explanation:
1)
Obtains
the
decimal
part
of
a
given
argument.
Its
sign
agrees
with
the
sign
of
the
argument.
2)
As
a
rule,
the
argument
is
enclosed
in
parenthesis
but
the
parenthesis
can
be
omitted
if
the
argument
is
a
variable
or
a
numeric
value.
ev
R
N
D
(Argument
digit
location)
®
Numeric
expression
Numeric
expression
an
Function:
Obtains
the
value
of
a
given
argument
rounded
off
at
the
specified
location.
Parameter:
Argument:
Numeric
expression.
Location:
Numeric
expression.
Values
below
the
decimal
point
are
discarded.
Displays
the
exponent
n
when
the
loca-
tion
to
be
rounded
off
is
10”.
WJocationl
<
100
Explanation:
1)
Obtains
the
value
of
a
given
argument
which
is
rounded
off
at
the
specified
|
location.
2)
If
RND
(x,
y)
is
executed,
x
will
be
rounded
off
at
10”.
Rounds
off
at
the
third
decimal
place
(10°?)
>
RND
(x,
-3)
Rounds
off
at
the
100s
position
(10?)
>
RND
(x,
2)
3)
The
parenthesis
cannot
be
omitted.
7-4 Numeric Functions
(r coordinate, 6 coordinate) ©)
Numeric expression
REC
Function:
- Transforms polar coordinates (r , €) to rectangular coordinates (x ,y).
Parameter:
r coordinate:
@ coordinate:
Numeric expression. 0<r < 101°
Numeric expression
DEG: lal < 1440°
RAD: 161 <8 a rad
GRA: |é1< 1600 gra
Explanation:
1) Transforms polar coordinates (7 ,@) to rectangular coordinates (x , y) using
the following relational expressions. x =rcos@
y=rsiné
2) The x coordinate of (x ,.y) will be given.as the output of the function, and
the value of the x coordinate will be assigned to variable X and the value of
the y coordinate will be assigned to variable Y at the same time.
3) An error will occur ifr <0. :
4) The output values will correspond to the setting of the angle unit (DEG, RAD
or GRA).
Example:
1@ CLEAR
2@ MODE 4
30 INPUT ‘r=",R
4@ INPUT “t (°)=”
5@ X=REC(R,T)
6@ PRINT*2=";
7@ PRINT*Y="3
8@ GOTO 3a
*(x , y) will be displayed if (7 , 6) is input. .
187