Stuck on Chapter 2

[[ Ø ] PS/2 > USB]

There's a math puzzle, I have the value of C as a single digit number. The Value of M is a triple digit number. The Product of MC is a four digit number. The square that product is greater than four digits. I'm certain I'm doing it wrong.

[[ Ø ] PS/2 > USB]

It was (MC)*2 Not MC^2

[Quote]

MC^2 means M*(C^2). Square C first.

[Tomoko]

Originally posted by Ø PS/2 > USB:

It was (MC)*2 Not MC^2

I'm surprised you got the right answer by doing it wrong. I'm assuming that meant your C value was 2? Since squaring that is the same as multiplying the entire thing by 2.

[[ Ø ] PS/2 > USB]

Either that or my game was giving me the wrong values just to mess with me and I got it by dumb luck. If that wasn't going to work I was going to brute force it.

[supra107]

Order of operations. First you calculate square roots and exponentiation, then multiplication and division, and only then addition and subtraction.

The equation is e=mc^2, m is a three digit number, with c being either a 2 or 3, assuming that hasn't been changed since the old Sub2.

I did the same mistake of calculating it as (mc)*2 but it was my fault. There are no brackets in the equation, so order of operations applies, so you just do a m*c^2 calculation.

[Tomoko]

Originally posted by supra107:

Order of operations. First you calculate square roots and exponentiation, then multiplication and division, and only then addition and subtraction.

The equation is e=mc^2, m is a three digit number, with c being either a 2 or 3, assuming that hasn't been changed since the old Sub2.

I did the same mistake of calculating it as (mc)*2 but it was my fault. There are no brackets in the equation, so order of operations applies, so you just do a m*c^2 calculation.

Technically since it's squared, you could do m*c*c, which won't require any special ordering at all. Although I doubt anyone is going to use that specific advice for this specific puzzle.

[Samerina]

but how did you find m? I'm to the point where I'm at that puzzle and none of the notes have a 3 digit number. not sure how to fix that broken wire either

[Stefan_Marley]

Originally posted by Samerina:

but how did you find m? I'm to the point where I'm at that puzzle and none of the notes have a 3 digit number. not sure how to fix that broken wire either

At the locked sewer entrance go RIGHT to where you used to find the fork, it's been replaced with a device to bridge the broken wires. Once you've done that climb the ladder toward the lighthouse lamp 2 screens and go left. Hover over the scribbles on the wall to get the value of m. Then multiply m by c and by c again (c^2) to get the 4 digit number for the puzzle on the left from the landing.

[Samerina]

Originally posted by Stefan_Marley:

Originally posted by Samerina:

but how did you find m? I'm to the point where I'm at that puzzle and none of the notes have a 3 digit number. not sure how to fix that broken wire either

At the locked sewer entrance go RIGHT to where you used to find the fork, it's been replaced with a device to bridge the broken wires. Once you've done that climb the ladder toward the lighthouse lamp 2 screens and go left. Hover over the scribbles on the wall to get the value of m. Then multiply m by c and by c again (c^2) to get the 4 digit number for the puzzle on the left from the landing.

thank you!! I didn't know you could go right at that point! I'll now start using arrow keys instead of clicking, for moving directions/changing screens.

[pavel71bure]

m=707 , C=3.......how to calculate this?

Thank you

[Stefan_Marley]

Originally posted by pavel71bure:

m=707 , C=3.......how to calculate this?

Thank you

Not sure if you still need an answer after this much time, but maybe as an example to others who are stuck:
c=3; c^2=9 m=707 e= mc^2 ==> 707 * 9 = 6363 for you.