15
Miscellaneous functions
1.234 + 1.234 =
I¼21.234+
1.23
1.234=
2.47
I¼.
2.468
1
÷
3 + 1
÷
3 =
I¼21d3+
0.33
I½
3.33-01
1d3=
6.67-01
I»
0.67
I¼.
0.666666666
123m x 456m = 56088m
123*456=
56088.
= 56.088km
I¾
56.088 03
7.8g
÷
96 = 0.08125g
7.8d96=
0.08125
= 81.25mg
I¾
81.25 - 03
Polar to rectangular coordinates conversions
Formula: x = r
•
cos
θ
y = r
•
sin
θ
eg, find the value of x and y when the point P is shown
as
θ
=60 and the length r=2 in the polar coordinates
DEG
2I²60IÃ
1.
(x)
I²
1.732050808
(y)
I²
1.
(x)
Rectangular to polar coordinates conversions
Formula: r =
√
x
2
+ y
2
θ
= tan
-1
y
/
x
(-180
°
<
θ
≥
180
°
)
eg, find the length r and the angle
θ
in radian when the point
P is shown as x=1 and y=
√
3 in the rectangular coordinates.
RAD
1I²3IÂÄ=
2.
(r)
I²
1.047197551
(
θ
in radian)
I²
2.
(r)
Other functions
English.PM6
3/3/99, 3:45 PM
15
