« previous next »
Pages: [1]   Go Down

Author Topic: Can the scale factor of sheer or stretch be negative ??  (Read 1665 times)

Offline Exam_Terrified

  • SF V.I.P
  • ********
  • Posts: 5068
  • Reputation: 3563
  • Gender: Female
Can the scale factor of sheer or stretch be negative ??
« on: May 12, 2009, 10:43:21 pm »
So, that if my answer is negative, do i put the answer postive ??
Logged

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: Can the scale factor of sheer or stretch be negative ??
« Reply #1 on: May 12, 2009, 10:47:20 pm »
Yes it can. It moves to the other side of the centre of enlargement.
Logged

Offline Exam_Terrified

  • SF V.I.P
  • ********
  • Posts: 5068
  • Reputation: 3563
  • Gender: Female
Re: Can the scale factor of sheer or stretch be negative ??
« Reply #2 on: May 12, 2009, 10:52:18 pm »
Quote from: astarmathsandphysics on May 12, 2009, 10:47:20 pm
Yes it can. It moves to the other side of the centre of enlargement.

no, i meant sheer or stretch, i know about enlargement.
Logged

Offline astarmathsandphysics

  • SF Overlord
  • *********
  • Posts: 11271
  • Reputation: 65534
  • Gender: Male
  • Free the exam papers!
Re: Can the scale factor of sheer or stretch be negative ??
« Reply #3 on: May 13, 2009, 01:55:44 am »
When youstretch you still need a direction of stretch starting from a certain point. I think therefore that it would be negastive if stretched by the same facture in the other direction.
Logged

Offline sweetsh

  • Retired Adminstrator
  • SF V.I.P
  • ********
  • Posts: 7049
  • Reputation: 65535
  • Gender: Female
  • *Freedom
Re: Can the scale factor of sheer or stretch be negative ??
« Reply #4 on: May 13, 2009, 10:09:14 pm »
Till now I cant handle the shear and enlargement thing in transformations thing!
Logged

Offline 7ooD

  • SF Geek
  • ****
  • Posts: 427
  • Reputation: 713
  • Gender: Male
    • 7ood
Re: Can the scale factor of sheer or stretch be negative ??
« Reply #5 on: May 14, 2009, 12:01:02 am »
dude chill yes it can it will be behind the invariant line if you know the transformation matrix then u can easily substitute the factor wiz costant value k
Logged
pimpin ain't dead it just moved to the web


Pages: [1]   Go Up
« previous next »