Recent content by ichabodgrant

Hi, normally when we try to analyse a structural beam with composite section, we apply transformed section method or so. But what if two beams are just put together (one onto another one) instead of having a composite relation (e.g. glued together), how am I going to analyse the forces and...

Hello everyone. I have a question about compressive strength of concrete. It is said that (in my country) 150 mm x 150 mm x 150 mm concrete cube is used for concrete testing. Someone asks me why 100 mm x 100 mm x 100 mm is not used. In fact, I know that sometimes it is allowed or even preferred...

And you mentioned that there should not be Cin? Does this mean there are no cascading inputs?

I have a question about the XOR gates. Are those XOR gates for doing 2's complement (i am thinking in this way)? But I know that 2's complement is not just inverting 1 and 0, but also needs to add 1 after that. It seems that the above design cannot do that?

A truth table looks like this? because I have never drawn a truth table for such a design...so I searched on google...

I think it should be using 2's complement.

Homework Statement Hi, it's me again. Now I am going to design a 4-bit magnitude comparator using just ONE 4-bit adder and infinitely large number of gates (AND, OR, NOT, NAND, NOR, XOR, XNOR) for signed numbers (negative binary). Homework Equations A > B => A3barB3 + A2barB2x3 +...

thank you for your kindness

then 1 - 0.52 = 3/4

so the probability of getting HH is p2? Then the required probability is 1- p2?

If it is HT, then no matter the next one is T or H, TH already occurs before HH, right? If it is TT, then also no matter the next one is T or H, TH already occurs before HH, right? If it is TH, then obviously no matter the next one is T or H, TH already occurs before HH, right? Just the case if...

so if there is no HH, then it is alright? Let the probability of getting a H be p. Then the required prob. is 1 - p2?

Actually TT, HT,TH all means TH must occur before HH, right?

Should I indeed use conditional probability? In case I have a T at the 1st trial, then it already achieves the event that TH appears before HH?

Oh Sorry... I have a typo in the question... The correct question is "T,H before HH"