Recent content by frank1

Homework Statement What is the complexity of the following recurrence: T(n) = (9/4)T((2/3)n) + n² Homework Equations My question is: can I use the Master Theorem here? The Attempt at a Solution My attemp: a=9/4 b=3/(1/2) (this is where I think I may be wrong) f(n) = n² so, in this case T(n)...

got it! thanks fourier

Homework Statement I'm kinda lost in the concept of conjugate elements in group theory. It says that a element "h conjugate by g" is: g-1×h×g = hg Then it says that if the group is abelian h = hg Homework Equations Abelian group: a*b = b*a The Attempt at a Solution I don't get why the fact...

Homework Statement Whats the stock solution volume required to prepare 100ml of a NaHCO3 solution 5g/L using a stock solution of NaHCO3 30g/L. Homework Equations M1*V1 = M2*V2 M = Molarity = mols/L The Attempt at a Solution NaHCO3 = 84g/mol 5g NaHCO3 = 0.0595238095238095mol 30g NaHCO3 =...

Homework Statement I understand this BCD sum circuit. The only thing that I'm not understanding is why last full adder carry out also triggers an 6-sum in the other part of the circuit. I mean, if the nibble is not an valid BCD number, we sum six to the number. Not valid BCD numbers are...

Ok, got it. Its possible to draw the K-map because where is C.B for example, I can map 1's in the cells adjacents where only A changes. thanks

but how can I show you my K-maps if I don't have my function in a miniterm or maxiterm form?

Homework Statement I need to obtain the minimum second order circuit of the function: Homework Equations The Attempt at a Solution I know that in order to get the minimum second order circuit, I need to use K-Map using both miniterms and maxiterm and compare them. My problem is to put the...

Thanks for the help .Scott!

hey .Scott thanks for helping. It's a thumbnail, click to see the full image The carry-in will say who S is?

Homework Statement The question asks the circuit's functionality FA = Full Adder Homework Equations The Attempt at a Solution I got two questions: 1) To understand this circuit functionality should I write it output considering all input possibilities (32 lines)? 2) If the carry...

Hi gneill. It really got too much out of context. It is like you said, it is a text that describes a circuit using transistors and diodes and what happens if both inputs (e1 and e2) are '1' (5V). I don't understand why T2 is OFF.

Oh, I'm sorry, I forgot to use your standard date format. I edited the original post.

Homework Statement Hello everyone, In the circuit below I don't understand why the "blue arrow" only goes through path 1, instead of path 1, 2 and 3? Homework Equations The Attempt at a Solution

Homework Statement Find the number of days between (December 8, 1980) and (November 6, 2013). Homework Equations The Attempt at a Solution There are 33 years between these two dates (if I get (December 8, 1980) and (December 8, 2013)). The number of leap years is int(33 / 4) = 8. Hence, I...