Rec - Casio FX-730P Owner's Manual

6-4 Numeric Functions
REC
Function:
(r coordinate,
e
coordinate)
Numeric expression
Transforms polar coordinates (r , e) to rectangular coordinates (x , y ).
Parameter:
r
coordinate :
e
coordinate:
Explanation:
Numeric expression. O
<:;;,r
< 10 100
Numeric expression
DEG: tel< 1440°
RAD : te I < 8
7f
rad
GRA: tel< 1600 gra
®
1) Transforms polar coordinates (r , e) to rectangular coordinates (x , y) using
the following relational_ expressions. x
=
r cos
e
y
=
r
sine
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
they coordinate will be assigned to variable Y at the same time .
3) An error will occur if
r
< 0 .
4) The output values will correspond to the setting of the angle unit (DEG , RAD
or GRA).
Example:
10 CLEAR
20 MODE 4
-~
INPUT "r
=''
, R
40 INPUT
"t
<
0
l=", T
50 X=RECCR,Tl
60 PR I NT"x='' ;X
70 PR I NT"Y='' ;Y
80
GOTO
30
*
(x ,y) will be displayed if (r , e) is input.
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