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vaggelis vaggelakis


University of Patras

Active since 2012

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solving a cubic equation
I am using the command x = solve('a*x^3 + b*x^2 + c*x + d') to get the polynomial's roots. It returns a symbolic answer. ...

mer än 10 år ago | 1 answer | 0

1

answer

Question


basic question on creating a function and plotting
Hello everyone i have the expression to calculate: Ke=K0*e*a*(a-1)/(1+e-a*e) K0, e are known values and a is my variable ...

mer än 10 år ago | 2 answers | 0

2

answers

Question


plotting a polynomial problem
hello everyone! maybe it's too simple, but i got a little angry trying to plot a polynomial let's say : u=a*x+b*x^2+c*x^3+...

nästan 12 år ago | 1 answer | 0

1

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Question


changing part of the name of a variable inside a "for" loop
hello everyone! let's say i have the equation between two variables: DT10sec= A*T10sec How can i use a "for" loop to...

ungefär 12 år ago | 4 answers | 0

4

answers

Question


the integer part of the division
hello everyone how do i get the integer part of the output of a division i.e. 23/5=4 (and the remainder is 3)

ungefär 12 år ago | 2 answers | 4

2

answers

Question


calculating a few elements of a table, using a different equation
Hello! Let's say that i am calculating every element of a 100X300 table by using equation A I use two for loops for i=1:100...

mer än 12 år ago | 1 answer | 0

1

answer

Question


using on a new m-file, another algorithm's results
how can i use the results of an algorithm(lets say a matrix), as an input in another's algorithm m-file?

mer än 12 år ago | 0 answers | 0

0

answers

Question


A convergence prcedure that doesn't work
Hello!! I use the Crank-Nicolson numerical method to calculate temperatures on a metalic plate(aluminium) 10cmx30cm. I ass...

mer än 12 år ago | 0 answers | 0

0

answers