Multimedia Elective (1 Viewer)

[[_mastak8r**]]

Does anyone know the easy way to convert the bit depth and resolution for video without using a calculator?

And does anyone know the REAL reason why we cant use a calculator?

 

[kieransgirl]

do u mean the number of colours in the bit depth?
each one is doubled eg. 2^1 = 2
2^2= 4
2^3=8 ect ect

 

[JRasnier]

umm were not allowed to bring a calculator BECAUSE?

they dont want us too...

i get 1/6 for that answer...lolz example of the type of answers u shouldnt have

 

[Huy]

I memorise the entire two columns, but you've got to start from first principles as kieransgirl has said.

Take the bit depth as your exponent (or power).
Your tones or colours will then be the result of your base raised by your exponent (bit depth).

2^1 = 2
2^2 = 4
2^3 = 8
2^4 = 16

Keeping the same base (to two), your bit depth will be your exponent ("power", aforementioned).

Your answer will then be the total number of possible colours and tones.

Stop at 2^8 (65536).


Real reason for why we can't use a calculator?
Because we become lazy thinkers with automation/computers.

 

[rx72c]

Thats funny how we do computers and they dont let us use computers to assist us in doing our exam, oh well in this years HSC dont remeber needing a calculator, my basic maths got me through.

 

[Huy]

Originally posted by rx72c
Thats funny how we do computers and they dont let us use computers to assist us in doing our exam

Like typing out your answers/responses?

Spellchecks, hidden files/directories, cheat notes, binary/dec calculators, the list goes on...

 

[rx72c]

Use your knowledge of maths

2^x=y

And your done.

Why dont we use calculators

Thats like saying

Why dont the cops do their jobs

 

[Huy]

Not an accurate analogy, but why don't we use calculators? Because everyone is lazy eating donuts? (stereotype, I admit).

The BOS (board) are scummy, hehehehe. (I can say that now, without fear). That is, unless they decide to mess around with my ranks and marks after reading this

 

[rx72c]

Whats wrong with the analogy.

 

[Huy]

Originally posted by rx72c
Whats wrong with the analogy.

Nothing

 

[Taz]

The reason we weren't allowed to use calculators doesnt matter - what does matter is that, by not allowing us to use calculators, they shouldnt put questions in the exam that require a calculator... basically - it was all just better for us. Much easier calculations = much easier questions.

 

[*hopeful*]

learn the table in the heinemenn text bk in the m/media section
also as taz said there not gonna put hard qstnz that require calculators neway