Tuesday, January 11, 2011

Rules of Transposition 2 using Syah's Rules

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
  1. Choose the more plus Rx as a spherical component. = -2.00DS
  2. Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = 0.25 D
  3. 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)

  1. Choose the more 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 1) and the least plus Rx 2) as a cylindrical component = -2.00DS/-0.25DC
  5. 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
  1. Choose the least plus Rx as a spherical component. = -2.25DS
  2. Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = 0.25 D
  3. Choose axis of  the more plus Rx as an axis = 90

Lets transfer the obtained information to spherocyl form (+ve cyl)
  1. Choose the more plus Rx as a spherical component. write as -2.25DS
  2. Write as slash after the spherical component = -2.25DS/
  3. Put +ve sign after the slash = -2.25DS/+
  4. Find the different between the more plus Rx 1) and the least plus Rx 2) as a cylindrical component = -2.25DS/+0.25DC
  5. 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

  1. +2.00DSx180; -2.00DSx90
  2. +3.00DS@180; -2.70DS@90
  3. +2.50DSx95; -2.00DS@95
  4. +2.00DSx180; +7.00DSx90
  5. +2.00DSx75; -2.00DSx165
  6. -5.00DSx110; -2.00DSx20  
  7. +7.00DSx180; -5.00DSx90
  8. +3.50DS@180; -2.00DS@90
  9. +2.75DSx95; -2.00DS@95
  10. +11.00DSx180; +7.00DSx90
  11. +12.00DSx75; -22.00DSx165
  12. -5.00DSx30; -2.00DSx120  
  13.  +2.00DSx180; -12.00DSx90
  14. +3.00DS@180; -3.75DS@90
  15. +2.50DSx170; -2.50DS@170
  16. -17.00DSx180; +2.00DSx90
  17. planox75; -2.00DSx165
  18. -12.00DSx110; -2.00DSx20  
  19. -4.00DSx180; -2.00DSx90
  20. -3.00DS@180; -2.75DS@90
  21. +2.00DSx115; -2.00DS@115
  22. +12.00DSx180; +7.00DSx90
  23. +22.00DSx75; -22.00DSx165
  24. -25.00DSx110; -12.00DSx20  

45 comments:

  1. muhammad hazwan razakJanuary 11, 2011 at 8:23 PM

    question 5

    +2.00DSx75
    -2.00DSx165

    -ve cyl form=

    +2.00DS/-4.ooDCx165

    +ve cyl form=

    -2.00DS/+4.00DCx75

    correct me if im wrong thanks

    ReplyDelete
  2. muhammad hazwan razakJanuary 11, 2011 at 8:36 PM

    @The Traveler

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

    ReplyDelete
  3. question 1:

    -ve cyl form:+2.00DS/-4.00DSx90
    +ve cyl form:-2.00DS/+4.00DSx180

    ReplyDelete
  4. Nur Farrahin Bt Mohd Nor KamalJanuary 11, 2011 at 8:50 PM

    Question 4

    -ve cyl form
    +7.00DS/-5.00DS x 180

    +ve cyl form
    +2.00DS/+5.00DS x 90

    ReplyDelete
  5. Nur Farrahin Bt Mohd Nor KamalJanuary 11, 2011 at 8:50 PM

    Question 4

    -ve cyl form
    +7.00DS/-5.00DS x 180

    +ve cyl form
    +2.00DS/+5.00DS x 90

    ReplyDelete
  6. nuur hani khairuddinJanuary 11, 2011 at 9:57 PM

    Q6

    -ve cyl form
    -2.00/-3.00 X 110

    +ve cyl form
    -5.00/+3.00 X 20

    ReplyDelete
  7. Nasrul Hadi Mohd SanadiJanuary 11, 2011 at 10:03 PM

    QUESTION 10

    (-)ve cyl form
    +11.00/-4.00 X 90

    (+)ve cyl form
    +7.00/+4.00 X 180

    ReplyDelete
  8. QUESTION 7

    POSITIVE CYL-FORM
    =-5.00DS/+12.00DC x 180

    NEGATIVE CYL-FORM
    = +7.00DS/-12.00DC x 90

    ReplyDelete
  9. question 13:

    +2.00DSx180; -12.00DSx90


    -ve cyl form:
    +2.00/-14.00x90


    +ve cyl form:
    -12.00/+14.00x180

    ReplyDelete
  10. Q19
    by 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

    ReplyDelete
  11. Q16

    -17.00DS X180
    +2.00DS X90

    -VE CYL:
    +2.00DS/-19.00DC X 180

    +VE CYL:
    -17.00DS/+19.00DC X 90

    ReplyDelete
  12. Question 18

    -12.00 x 110
    -2.00 x 20

    -ve cyl:
    -2.00DS/-10.00DC x 110

    +ve cyl:
    -12.00DS/+10.00DC x 20

    ReplyDelete
  13. @Anonymous

    If 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

    ReplyDelete
  14. siti hawa saadah hamdanJanuary 12, 2011 at 11:20 AM

    question 11

    +12.00DS x 75
    -22.00DS x 165

    answer: -22.00/+34.00 x 75

    ReplyDelete
  15. siti hawa saadah hamdanJanuary 12, 2011 at 11:28 AM

    correction for answer Q:11

    -ve cyl:
    +12.00DS/-34.00DC x 165

    +ve cyl:
    -22.00DS/+34.00DC x 75

    ReplyDelete
  16. suyidatina bt sulaimanJanuary 12, 2011 at 11:39 AM

    salam..
    i 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

    ReplyDelete
  17. Awatif Akmal ArshadJanuary 12, 2011 at 11:47 AM

    Q12

    -ve cyl:
    -2.00/-3.00x30

    +ve cyl:
    -5.00/+3.00x120

    ReplyDelete
  18. bismillahirrahmanirrahim...

    answer for question 12

    +ve cyl:
    -5.00DS/+3.00DCx120

    -ve cyl:
    -2.00DS/-3.00DCx30

    ReplyDelete
  19. Awatif Akmal ArshadJanuary 12, 2011 at 11:52 AM

    @nurjannah ngatiman

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

    ReplyDelete
  20. sorry2...seems that awatif is faster than me...
    i must answer another question...

    answer for question 22

    +ve cyl:
    +7.00DS/+5.00DCx180

    -ve cyl:
    +12.00DS/-5.00DCx90

    ReplyDelete
  21. Q2

    change to: +3.00x90
    -2.70x180

    minus cyl: +3.00/-5.70x180
    plus cyl : -3.00/+5.70x90

    ReplyDelete
  22. Q20:
    change to: -3.00x90
    -2.75x180

    answers:(-ve) -2.75/-0.25x90
    (+ve) -3.00/+0.25x180

    ReplyDelete
  23. owh typing error...careless mistake..huhu

    ReplyDelete
  24. correction for my answer for Q2:

    change to: +3.00x90
    -2.70x180

    minus cyl: +3.00/-5.70x180
    plus cyl: -2.70/+5.70x90

    ReplyDelete
  25. correction for answer Q2:

    plus cyl: -2.70/+5.70x90

    ReplyDelete
  26. q3

    +2.50DSX95
    -2.00DS@95

    minus cyl
    = +2.50DS/-4.50DCX5

    plus cyl
    = -2.00DS/+4.50DCX95

    ReplyDelete
  27. Q9:
    +2.75DSx95
    -2.00DS@95

    ans:

    (-ve) cyl:
    =+2.75/-4.75x5

    (+ve) cyl:
    =-2.00/+4.75x95

    ReplyDelete
  28. Assalamualaikum... > =)

    q9
    +2.75DSx95; -2.00DS@95

    minus cyl:
    +2.75DS/-4.75x5

    plus cyl:
    -2.00DS/+4.75x95

    ReplyDelete
  29. Mohd Syukri AminuddinJanuary 17, 2011 at 4:58 AM

    Salam...
    Question 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..

    ReplyDelete
  30. assalamualaikum...

    q15

    +2.50DSx170; -2.50DS@170

    minus cyl:
    +2.50DS/-5.00x80

    plus cyl:
    -2.50DS/+5.00x170

    ReplyDelete
  31. Mohd Syukri AminuddinJanuary 17, 2011 at 4:43 PM

    Salam...
    Question 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..

    ReplyDelete
  32. muhammad fahmi ananJanuary 18, 2011 at 12:06 AM

    24. -25.00DSx110; -12.00DSx20

    so the answer:

    minus cyl:

    +25.00/-37.00x20

    plus cyl:

    -12.00/+37.00x110

    ReplyDelete

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