Last post, I've shared rules of transposition of minus cyl form to plus cyl form or vise versa. This time, I would like to share rules of transposition of spherical form to spherocyl form (-ve cyl and +ve cyl). By using these rules, you do not need to draw the cross-line diagram.

I start with spherical form to spherocyl form (-ve cyl form)

Use the example below;

1) -2.00DS x 90

2) -2.25DS x 180

Syah's Rules

*Choose the more plus Rx as a spherical component. = -2.00DS**Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = 0.25 D**Choose axis of the least plus Rx as an axis = 180*

Now, I will explain how to transfer the obtained information in the written spherocyl form (-ve cyl)

*Choose the more plus Rx as a spherical component. write as -2.00DS**Write as slash after the spherical component = -2.00DS***/***Put -ve sign after the slash = -2.00DS/-**Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = -2.00DS/-0.25DC**Choose axis of the least plus Rx as an axis = -2.00DS/-0.25DCx180*

Taraa..we get the correct answer..

Now, Let's explore spherical form to spherocyl form (+ve cyl form) using the same example

Syah's Rules

*Choose the least plus Rx as a spherical component. = -2.25DS**Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = 0.25 D**Choose axis of the more plus Rx as an axis = 90*

Lets transfer the obtained information to spherocyl form (+ve cyl)

*Choose the more plus Rx as a spherical component. write as -2.25DS**Write as slash after the spherical component = -2.25DS***/***Put +ve sign after the slash = -2.25DS/+**Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = -2.25DS/+0.25DC**Choose axis of the more plus Rx as an axis = -2.25DS/+0.25DCx90*

Yeeza...Finally, we obtain the answer...So easy dude..

Let's do this mind exercises...Year 1..Try to post before 18th January 2011

First comes, first serves basis

- +2.00DSx180; -2.00DSx90
- +3.00DS@180; -2.70DS@90
- +2.50DSx95; -2.00DS@95
- +2.00DSx180; +7.00DSx90
- +2.00DSx75; -2.00DSx165
- -5.00DSx110; -2.00DSx20
- +7.00DSx180; -5.00DSx90

- +3.50DS@180; -2.00DS@90
- +2.75DSx95; -2.00DS@95
- +11.00DSx180; +7.00DSx90
- +12.00DSx75; -22.00DSx165
- -5.00DSx30; -2.00DSx120
- +2.00DSx180; -12.00DSx90

- +3.00DS@180; -3.75DS@90
- +2.50DSx170; -2.50DS@170
- -17.00DSx180; +2.00DSx90
- planox75; -2.00DSx165
- -12.00DSx110; -2.00DSx20
- -4.00DSx180; -2.00DSx90

- -3.00DS@180; -2.75DS@90
- +2.00DSx115; -2.00DS@115
- +12.00DSx180; +7.00DSx90
- +22.00DSx75; -22.00DSx165
- -25.00DSx110; -12.00DSx20

question 5

ReplyDelete+2.00DSx75

-2.00DSx165

-ve cyl form=

+2.00DS/-4.ooDCx165

+ve cyl form=

-2.00DS/+4.00DCx75

correct me if im wrong thanks

@muhammad hazwan razak

ReplyDelete100%...wah..you are the first commenter

@The Traveler

ReplyDeletehehe thanks sir...tgh check email td tgk ade email dr sir to yg terus buat =)

question 1:

ReplyDelete-ve cyl form:+2.00DS/-4.00DSx90

+ve cyl form:-2.00DS/+4.00DSx180

Question 4

ReplyDelete-ve cyl form

+7.00DS/-5.00DS x 180

+ve cyl form

+2.00DS/+5.00DS x 90

Question 4

ReplyDelete-ve cyl form

+7.00DS/-5.00DS x 180

+ve cyl form

+2.00DS/+5.00DS x 90

Q6

ReplyDelete-ve cyl form

-2.00/-3.00 X 110

+ve cyl form

-5.00/+3.00 X 20

QUESTION 10

ReplyDelete(-)ve cyl form

+11.00/-4.00 X 90

(+)ve cyl form

+7.00/+4.00 X 180

QUESTION 7

ReplyDeletePOSITIVE CYL-FORM

=-5.00DS/+12.00DC x 180

NEGATIVE CYL-FORM

= +7.00DS/-12.00DC x 90

question 13:

ReplyDelete+2.00DSx180; -12.00DSx90

-ve cyl form:

+2.00/-14.00x90

+ve cyl form:

-12.00/+14.00x180

Q19

ReplyDeleteby using SYAH's rule...

(-ve cyl)

plus Rx= -2.00ds

diff.btwn Rx1 n Rx 2=2.00d

axis of least plus= 180

ans=-2.00ds/-2.00d X180

(+ve cyl)

least plus Rx= -4.00ds

diff.btwn Rx1 n Rx 2= 2d

axis of more plus=90

ans=-4.00/+2.00d X 90

Q16

ReplyDelete-17.00DS X180

+2.00DS X90

-VE CYL:

+2.00DS/-19.00DC X 180

+VE CYL:

-17.00DS/+19.00DC X 90

Question 18

ReplyDelete-12.00 x 110

-2.00 x 20

-ve cyl:

-2.00DS/-10.00DC x 110

+ve cyl:

-12.00DS/+10.00DC x 20

@Anonymous

ReplyDeleteIf you have any problem..please see me. We can discuss about this matter.It is not ethical give comment like it in this blog.

Tq

@amalina latif

ReplyDeleteCorrect

@Muhammad Jazli

ReplyDeletecorrect

@saRizi haSim

ReplyDeleteCorrect

@Roxy zai

ReplyDelete100%

@SYAZWAN HAFIZ MOHD

ReplyDelete100%

@Nasrul Hadi Mohd Sanadi

ReplyDelete100%

@nuur hani khairuddin

ReplyDelete100%

@Nur Farrahin Bt Mohd Nor Kamal

ReplyDelete100%

@muhammad hazwan razak

ReplyDeletetq..good job

@Norain Razali

ReplyDelete100%

question 11

ReplyDelete+12.00DS x 75

-22.00DS x 165

answer: -22.00/+34.00 x 75

correction for answer Q:11

ReplyDelete-ve cyl:

+12.00DS/-34.00DC x 165

+ve cyl:

-22.00DS/+34.00DC x 75

salam..

ReplyDeletei would like to answer question 23 : +22DSx75,-22DSx165

ans (in +ve cyl):

1)-22DS

2)-22DS/

3)-22DS/+

4)-22DS/+44DS

5) finally...-22DS/+44DSx75

ans (in -ve cyl):

1)+22DS

2)+22DS/

3)+22DS/-

4)+22DS/-44

5)finally...+22DS/-44DSx165

Q12

ReplyDelete-ve cyl:

-2.00/-3.00x30

+ve cyl:

-5.00/+3.00x120

bismillahirrahmanirrahim...

ReplyDeleteanswer for question 12

+ve cyl:

-5.00DS/+3.00DCx120

-ve cyl:

-2.00DS/-3.00DCx30

@nurjannah ngatiman

ReplyDeletehaha jannah jwb soklan len laa... watif daa jwb da tu..

sorry2...seems that awatif is faster than me...

ReplyDeletei must answer another question...

answer for question 22

+ve cyl:

+7.00DS/+5.00DCx180

-ve cyl:

+12.00DS/-5.00DCx90

Q2

ReplyDeletechange to: +3.00x90

-2.70x180

minus cyl: +3.00/-5.70x180

plus cyl : -3.00/+5.70x90

Q20:

ReplyDeletechange to: -3.00x90

-2.75x180

answers:(-ve) -2.75/-0.25x90

(+ve) -3.00/+0.25x180

owh typing error...careless mistake..huhu

ReplyDeletecorrection for my answer for Q2:

ReplyDeletechange to: +3.00x90

-2.70x180

minus cyl: +3.00/-5.70x180

plus cyl: -2.70/+5.70x90

correction for answer Q2:

ReplyDeleteplus cyl: -2.70/+5.70x90

q3

ReplyDelete+2.50DSX95

-2.00DS@95

minus cyl

= +2.50DS/-4.50DCX5

plus cyl

= -2.00DS/+4.50DCX95

Q9:

ReplyDelete+2.75DSx95

-2.00DS@95

ans:

(-ve) cyl:

=+2.75/-4.75x5

(+ve) cyl:

=-2.00/+4.75x95

Assalamualaikum... > =)

ReplyDeleteq9

+2.75DSx95; -2.00DS@95

minus cyl:

+2.75DS/-4.75x5

plus cyl:

-2.00DS/+4.75x95

knp xblh post coment ni =(

ReplyDeleteSalam...

ReplyDeleteQuestion no.9

+2.75DSx95 and -2.00DS@95

A.Steps to transfer in written of spherocyl form (-ve cyl) :

1)Choose the more plus Rx as a spherical component,

-> write as +2.75DS

2)Write as slash after the spherical component,

-> +2.75DS/

3)Put -ve sign after the slash,

-> -2.00DS/-

4)Find the different between the more plus Rx and the least plus Rx,

-> (+2.75) - (-2.00) = 4.75

then,write as a cylindrical component,

-> -4.75DC

5)Choose axis of the least plus Rx as an axis,

-> -2.00DS@95 = -2.00DSx5

Finally the answer,

= +2.75DS/-4.75DCx5

B.Steps to transfer in written of spherocyl form (+ve cyl) :

1)Choose the least plus Rx as a spherical component,

-> write as -2.00DS

2)Write as slash after the spherical component

-> -2.00DS/

3)Put +ve sign after the slash

-> -2.00DS/+

4)Find the different between the more plus Rx and the least plus Rx,

-> (+2.75) - (-2.00) = 4.75

then,write as a cylindrical component,

-> +4.75

5)Choose axis of the more plus Rx as an axis,

-> +2.75DSx95

Finally the answer,

= -2.00DS/+4.75DCx95

TQ..=)

Wassalam..

assalamualaikum...

ReplyDeleteq15

+2.50DSx170; -2.50DS@170

minus cyl:

+2.50DS/-5.00x80

plus cyl:

-2.50DS/+5.00x170

hope q15 not overlap with others

ReplyDeleteSalam...

ReplyDeleteQuestion no.8

+3.50DS@180 and -2.00DS@90

1st step,change to sph/cyl cross-form,

->+3.50DSx90 and -2.00DSx180

A.Steps to transfer in written of spherocyl form (-ve cyl) :

1)Choose the more plus Rx as a spherical component,

-> write as +3.50DS

2)Write as slash after the spherical component,

-> +3.50DS/

3)Put -ve sign after the slash,

-> +3.50DS/-

4)Find the different between the more plus Rx and the least plus Rx,

-> (+3.50) - (-2.00) = 5.50

then,write as a cylindrical component,

-> -5.50DC

5)Choose axis of the least plus Rx as an axis,

-> -2.00DS@90 = -2.00DSx180

Finally the answer,

= +3.50DS/-5.50DCx180

B.Steps to transfer in written of spherocyl form (+ve cyl) :

1)Choose the least plus Rx as a spherical component,

-> write as -2.00DS

2)Write as slash after the spherical component

-> -2.00DS/

3)Put +ve sign after the slash

-> -2.00DS/+

4)Find the different between the more plus Rx and the least plus Rx,

-> (+3.50) - (-2.00) = 5.50

then,write as a cylindrical component,

-> +5.50DC

5)Choose axis of the more plus Rx as an axis,

-> +3.50DS@180 = +3.50DSx90

Finally the answer,

= -2.00DS/+5.50DCx90

TQ..=)

Wassalam..

24. -25.00DSx110; -12.00DSx20

ReplyDeleteso the answer:

minus cyl:

+25.00/-37.00x20

plus cyl:

-12.00/+37.00x110