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How to argue that if we could solve the halting problem, then we could solve busy beaver?
by Alec in Careers & Job Searching

This is one of the tasks of my assignment. I have a Turing machine simulation which can simulate a busy beaver function. I have done some research about proving this problem, but still don't get it so I guess maybe you can help me here. A good source for me to go to or example of how to argue this would be good.

Mathematica Solve can't solve simple overdetermined problems
by dlouzan in Web Design

I have a set of equations I'm trying to solve which are overdetermined but consistent. The are 9 equations and 3 unknowns, the left hand side of the equations are displayed here in a matrix:

The variables are eta1, eta2 and eta3. If I choose values for eta1-3 say

The the nine equations take values:

And if I give Solve t

How to Solve for Both X & Y
by chuck1723 in Education
Solving for two variables (normally denoted as "x" and "y") requires two sets of equations. Assuming you have two equations, the best way for solving for both variables is to use the substitution method, which involves solving for one variable as far as possible, then plugging it back in to the other equation. Knowing how to solve a system of equations with two variables is important for several a
TAGS : Solve Both

Is it possible to solve this?
by FrankSaucedo in Programming Languages

Recently I encountered this puzzle :

int main(){
int arr[7];
int b,c,d,a;
return 0;

The question is to Replace "?" with a integer so that output is 4. I am not sure but I don't think this is solvable in a standard way ?! (Not invoking Undefined Behavior or depending on implement

How to Solve RPM
by frogger9 in Careers & Job Searching
A wheel's RPMs describe its angular speed in rotations per minute. This measurement is related to but distinct from the wheel's linear speed, which is easier to record. The linear speed is the wheel's velocity along the ground in units such as miles per hour. A smaller wheel needs to rotate more quickly to move forward at a set linear speed. You can judge the wheel's size most easily from its radi
TAGS : Solve

How can i solve this? :
by Fremont in Web Design

Given an undirected weighted graph G = (V,E). Each vertex represents a city and the weight of an edge connected a and b is the number of years that it will take to finish building a high speed route between city a and city b. Describe an algorithm that will find the least number of years before one can travel between any two cities in the graph.
The routes are being built simultaneously, s

TAGS : solve this

How to solve δ(A,01) for this DFA?
by Aravinth in Web Design

Consider the DFA :

What will be δ(A,01) equal to ?

A) {D}
B) {C,D}
C) {B,C,D}
D) {A,B,C,D}

The correct answer is option B) but I don't get how. Please some one explain me the steps to solve it and also in general how do we solve sit for any DFA and any transition?


TAGS : solve this

How to Solve for X With Two X's
by ivoidwarranties in Education
In algebra, "x" is a variable customarily used in equations. But "x" isn't the only variable -- a variable is defined as any alphabetic letter that represents a yet-unknown quantity. Other common variables include a, b, c and y. Solving equations with two variables can be challenging, as it requires multiple steps as well as essential algebraic background knowledge. For instance, you must be famil
TAGS : Solve With

How to Solve for X
by Surya in Education
Algebra can be scary at first. Suddenly instead of just numbers, you are dealing with letters in math class! One of the first things you'll need to do in algebra is learn to solve for x.Difficulty:Moderately EasyInstructions Things You'll Need
Math Problems that need solving!

Solving for x can sound scary but it's not! When you see x in an equation, it'

TAGS : Solve

How to Solve for X on a TI-83
by Puddle Jumper in Hobbies, Games & Toys
X on a pirate map stands for the spot where a treasure has been buried. X in a mathematical equation is a variable that represents an answer to the equation. This variable, when you have found its value, makes the equation true when you use that value in place of the variable itself. Finding the value of x on a TI-83 is easy. It may not be the same as finding buried treasure, but mathematicians ar
TAGS : Solve

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