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/sci/ - Science & Math

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2183256 No.2183256 [Reply] [Original]

>http://www.cas.mcmaster.ca/~qiao/courses/cs4mn3/exams/final09ws.pdf

Q5 part c, should it not be 1.1 instead of 0.9? studying for this exam and a quick yay/nay would be nice

>> No.2183265

>CS4
>no programing involve
The fuck?!

>> No.2183268

>>2183265
I hope you're trolling.

>> No.2183271

>>2183265
cause writing a book only takes knowledge of words?

>> No.2183277

one of the few courses in comp sci related to mathematics... lol

>> No.2183282

>McMaster
>computer science

>not Western, Queens, UofT, or Waterloo

>> No.2183289

It's supposed to read like this:

y^(0)_1 = y_0 + hf^0 = 1 + 0.1(−(1^2)) = 0.9.

as

(-x^2) = -(x^2)

>> No.2183290

>>2183282
McMaster is fucking awesome. Don't fucking look down on MY university.

WUCK FESTERN!

>> No.2183295

>>2183290
>implying McMaster is awesome
I suppose York is worse though.

>> No.2183296

>>2183282
im enrolled in se 3x03 which happens to share the same content as cs4mn3

>> No.2183303

>>2183289
how is this true,
-1 * -1 = 1
- (1 * 1) = -1

>> No.2183316

>>2183303

Because exponentiation has higher precedence

- 1^2 = - (1 * 1) = -1

but you are right that it's unclear - they should have used parentheses to make it clear

eg.

(-1)^2
or
-(1^2)

>> No.2183357

>>2183316
i suppose this makes sense. but am i not still correct that as it stands it looks at though -1^2 =1. without the brackets i swear its -1 * -1

PATHALEONS OF RAGE TOWARDS MATHEMATICS

thanks though