Maths problems, SIN, COS, TAN ???!?!! HELP!!!!

• HafizulKMS

  25 Oct 05, 12:25

  
  I work for a company as a business software developer, and then this smart boss throws me into another project. He said this is a BIG PROJECT! But I have a problem, because this is a project for game development!! I donÂ’t have any background on this kind of project, blah blah blah...
  
  Now, I have to learn SIN, COS, TAN, and etc. May I know where can I get those references? I think some secondary references may have those topics right? I canÂ’t remember any of those things, because I left my school for more than 10 years!
  
  Anyone can help by suggesting some references where I can get from popular bookstore? May I know it's sec 3/4/5/6 topics?
  
  I just need some simple reference materials.
  
  Millions thanks for the helps. I am so stress up!
  
• FireIce

  25 Oct 05, 12:29

  ask the sec sch student to give u or sell u their textbooks?
• Apollo_sg

  25 Oct 05, 12:57

  SIN COS TAN?
  
  Learn the base rules use TAO CAH SOH
  
  Tan = Adjacent/ Opposite
  Cos = Adj / Hypo
  Sin = Opp/ Hypo
  
  simple
  
  also learn the 3-4-5 rule to get a right angle
  
  sq 3 = 9
  sq 4 = 16
  sum = 9 + 16 = 25
  
  sqrt 25 = 5
  
  hence 3-4-5
  
  
• ditzy

  25 Oct 05, 13:01

  www.yahoo.com.au
• smudgey

  25 Oct 05, 13:04

  try searching for secondary 4, A maths textbook
• MeOwSuSan

  25 Oct 05, 13:09

  go buy 10 year serial on O level or N level with do ...
  
  you need text book can buy from me .... very cheap second hand
• Xcert

  25 Oct 05, 14:04

  Originally posted by HafizulKMS:

  Anyone can help by suggesting some references where I can get from popular bookstore? May I know it's sec 3/4/5/6 topics?
  
  I just need some simple reference materials.
  
  Millions thanks for the helps. I am so stress up!
  

  no need to buy lar...just search online can get all kinds of formulas...
  buy=waste money...U want to waste money?...come come...I be ur tuition teacher...I give U discount...
• HafizulKMS

  25 Oct 05, 14:08

  Thanks for the reply and constructive suggestion.
  
  I will go to find some sec4 A maths books today in popular bookstore. Sorry I can't buy second books because I don't have time to meet and etc.
  
  Wa... I tell you, Maths is VERY important!!
  
  You see, even building a bloody game, you need lots of mathematics. When a monster cast one spell, the spell has to travel axis XYZ by following some rules, thus all this COS, SIN, and TAN come to play. Can't even simply let the spell just shoot like that.
  
  Really headache. Game development is really no fun.
• FireIce

  25 Oct 05, 14:10

  check out LOGD http://www.sgforums.com/?action=thread_display&thread_id=158624
• CP25

  25 Oct 05, 14:10

  Originally posted by HafizulKMS:

  I work for a company as a business software developer, and then this smart boss throws me into another project. He said this is a BIG PROJECT! But I have a problem, because this is a project for game development!! I donÂ’t have any background on this kind of project, blah blah blah...
  
  Now, I have to learn SIN, COS, TAN, and etc. May I know where can I get those references? I think some secondary references may have those topics right? I canÂ’t remember any of those things, because I left my school for more than 10 years!
  
  Anyone can help by suggesting some references where I can get from popular bookstore? May I know it's sec 3/4/5/6 topics?
  
  I just need some simple reference materials.
  
  Millions thanks for the helps. I am so stress up!
  

  go borrow a sec 2/3 E Maths textbook n do revision.
• stellazio

  25 Oct 05, 14:10

  i think the basic is found in sec 2 textbook..
• Fucking Bitch

  25 Oct 05, 14:22

  Originally posted by Apollo_sg:

  SIN COS TAN?
  
  Learn the base rules use TAO CAH SOH
  
  Tan = Adjacent/ Opposite
  Cos = Adj / Hypo
  Sin = Opp/ Hypo
  
  simple
  
  also learn the 3-4-5 rule to get a right angle
  
  sq 3 = 9
  sq 4 = 16
  sum = 9 + 16 = 25
  
  sqrt 25 = 5
  
  hence 3-4-5
  
  

  you say it's simple? when you can mix up tan=opposite/adjacent?
• alexkusu

  25 Oct 05, 14:23

  Originally posted by ditzy:

  www.yahoo.com.au

  here
  
  [ url ] [ / url ]
• Apollo_sg

  25 Oct 05, 17:32

  Originally posted by Fucking Bitch:

  you say it's simple? when you can mix up tan=opposite/adjacent?

  limpeh typo bah.. can sort out easily lah, google for answer
  
  
• Crappyz

  27 Oct 05, 00:10

  Originally posted by Fucking Bitch:

  you say it's simple? when you can mix up tan=opposite/adjacent?

  haha... wah like that also notice...
• Lorry`

  27 Oct 05, 09:13

  1 of my fav topic ..
  letme summarised,
  
  EMaths :
  Sec 2 - Chap15 (basically application of trigo)
  Sec 3 - Chap 10 (Special Angles : 30, 60, 45 degrees . need to know to draw the two types of triangles) , (Sine rule, Cosine rule)
  
  AMaths (EPB Pan Pacific Publishin):
  Chap 10 (Trigo functions, 'ASTC', Graphs ....)
  Chap 11 (Trigo Identities and Eqns) (this is fun)
  
  TOA
  CAH
  SOH
  
  Hope this helps .
  
  
• Jeno

  27 Oct 05, 13:49

  How abt Laplus and differentiation .. dy/dx ?
• kc_leung

  27 Oct 05, 17:28

  Originally posted by Jeno:

  How abt Laplus and differentiation .. dy/dx ?

  At least the thread starter dun have to do Fourier and z-transform too.
• WiNtEr'SkiLL

  27 Oct 05, 17:30

  haha maths.. my fav subject..
  go to google.com to search
• Xiao Jun

  27 Oct 05, 17:32

  http://nsinte1.moe.edu.sg/project/db/atl/db_puatl.nsf/index?OpenForm&PUBLIC&ace
  
  U may want to try this link...it should reveal all e approved Maths Text Book List in our secondary Schools~
• gambatak

  28 Oct 05, 02:58

  Originally posted by Apollo_sg:

  SIN COS TAN?
  
  Learn the base rules use TAO CAH SOH
  
  Tan = Adjacent/ Opposite
  Cos = Adj / Hypo
  Sin = Opp/ Hypo
  
  simple
  
  also learn the 3-4-5 rule to get a right angle
  
  sq 3 = 9
  sq 4 = 16
  sum = 9 + 16 = 25
  
  sqrt 25 = 5
  
  hence 3-4-5
  
  

  WRONGWRONGWRONG! ITS TOA CAH SOH U WRITE TAO... SHOULD BE TANGENT=OPP/ADJ =)
• Apollo_sg

  28 Oct 05, 10:38

  Originally posted by kc_leung:

  At least the thread starter dun have to do Fourier and z-transform too.

  you wanna add 1st principles also?
  
  
• dragg

  28 Oct 05, 10:41

  i hate it.
  
  
• FeowFeow

  28 Oct 05, 11:08

  SIN = A task carried out with malice & ill-intent.
  
  COS = Short-form for Because.
  
  TAN = A common surname in Singapore.
  
  FeowFeow
• death_burger

  29 Oct 05, 17:03

  Originally posted by Apollo_sg:

  SIN COS TAN?
  
  Learn the base rules use TAO CAH SOH
  
  Tan = Adjacent/ Opposite
  Cos = Adj / Hypo
  Sin = Opp/ Hypo
  
  simple
  
  also learn the 3-4-5 rule to get a right angle
  
  sq 3 = 9
  sq 4 = 16
  sum = 9 + 16 = 25
  
  sqrt 25 = 5
  
  hence 3-4-5
  
  

  
  Its TOA not TAO, and Tan = Opposite/ Adjacent not adjacent/ opposite