F.O
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Master student at Bergen university
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Awarded to F.O on 30 Aug 2020
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Awarded to F.O on 05 May 2020
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Domanda
Calculate Lyapunov spectrum for Lorenz system
Hello, I am trying to use the following code https://www.math.tamu.edu/~mpilant/math614/Matlab/Lyapunov/LorenzSpectrum.pdf to c...
oltre 3 anni fa | 3 risposte | 0
3
risposteDomanda
Plotting time series of ODE for several initial values in subplot
I am checking the stability of Equilibrium points for a system of 3 ODE numerically via ODE54 and need to plot the result for se...
circa 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Matlab gives wrong solution of a nonlinear system of equations.
I had bigger (6 equations) system of ODE and reduced it to the follwing system to check if we cand find equilibruim points . ...
oltre 4 anni fa | 2 risposte | 0
2
risposteDomanda
Solve a system of nonlinear equations with conditions
I have the follwing system of equation which I want to solve . How I will put conditions that all parameters shoud be positive a...
oltre 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Error while solving a coupled system of ODE
I am trying to solve a system of 6 coupled ODE my function works but I dont know why calling ode45 doesnt work. My function i...
oltre 4 anni fa | 1 risposta | 0
1
rispostaDomanda
Solve and plot the phase portrait for van der pol ODE with time dependent term
I want to solve this system of ode by ode45 and then plot the x1 and x2 with t and phase portrait later but I got error which i ...
circa 5 anni fa | 1 risposta | 0
1
rispostaDomanda
Draw the vector field and eigenvectors in the phase portrait for Van der Pol ODE
I have the follwing system which represent the Van der Pol oscillator with the inital condition and parameters are given. I draw...
circa 5 anni fa | 1 risposta | 0
1
rispostaDomanda
3 dimentions matrix Creation
Hei, I have this matrix A=[4 -1 1;4 -8 1;-2 1 5] And I want to add a third dinention (page) to it with only one elem...
circa 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Compute the partial derivative numerically
Hi, I want to compute the first and second partial derivative with respect to x, y for this function x0=0 y0=0 x=[-1:...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
find the position of en element if you have the increment
How i will find mathematically what is the position of the element correspounding z=-2 it is 21 but I cant find it mathematicall...
oltre 6 anni fa | 2 risposte | 0
2
risposteDomanda
Putting a label on the colorbar in imagesc plot
Hello helpers, How I will put a label on the colorbar in the plot to show what it is actually representing ,there is nothing ab...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
How I will change the line widith for to function in the same plot comand
Hello, How I will change the line width for two functions in the same plot command? or I will need to do it in a separate com...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
plane y=x
Hei , I want to drow this planes y=x,z=x,z=y in 3D using fsurf but dont know fow to set the function?
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Using greek letters as variables and as subscript in Matlab
I want to write two things : * first B and puttings theta as letter not word as subscripts * second : using lambda or other...
oltre 6 anni fa | 1 risposta | 2
1
rispostaDomanda
Using a variable as both output and input and writing a condition in a function
*Hei , I have this function* function [lambda, lambdap,phip] = Palaeomagfun(I ,D,lambda,lambdax,phix ) lambda=atan...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Stop some outputs of a function
%I have this function function [ B,H,Z,I ] = magfun( lambda ) r=6371*10^3 ; %in m u0=4*pi*10^-7 ; %in kg m A^-2 S^-2 ...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
long title problem printing
Hei. I have written a long title for a plot but not all of it appears when saving it as pdf! any idea to fix this?
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Using condition in Function
Hei. I have this script: %% Problem 3 clear all %a) %DATA for Nazca-Pacific o1=13.6*10^-7 l1=55.6 p...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Plot a cyinder with height from one value to another
I want to plot a cylinder with height that goes from -4 to 4 and radius 2?
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
USING FOR LOOP TO PLOT SEVERAL LINES
L=[4:2:20]; %X coordintates for reflaction point x3=L/2; %Y coordinates for reflection point IS -5 %X coordinate for ...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
plot line segments on the same plot
I have 3 lines y=0,y=-6,y=-14 and have this points in the y=0 xs =[10.9412 17.6187 32.3200 77.3532] ys=[ 0 0 0 0]...
oltre 6 anni fa | 0 risposte | 0
0
risposteDomanda
Compute double sum or double integral throug sum
x=[-20:0.2:10]; y=[-10:0.2:5]; u2=-3*exp(-sqrt(x.^2+y.^2)/2) I want to sum this function from y=1 to the number of el...
oltre 6 anni fa | 2 risposte | 0
2
risposteDomanda
Matlab and memory use
Hi, How I can compute how much RAM memory this matrix rand(500,500) take?
oltre 6 anni fa | 2 risposte | 0
2
risposteDomanda
Position of an element in a vector
Hi,I want to find the position not value of an element of a vector that meet equal a number, I have this vector z=[0:-0.01:-16]...
oltre 6 anni fa | 4 risposte | 1
4
risposteDomanda
plot a cube with to planes in on figure
I have a question about a tipple integral but it was difficult to visualize the integration region which is part of the cub 0<...
oltre 6 anni fa | 0 risposte | 0
0
risposteDomanda
TABLE OF 2 ROWS AND 12 COLUMNS
Hi,I want to make a TABLE OF 2 ROWS AND 12 COLUMNS WITH YEAR IN THE FIRST ROW AND NUMBER OF EARTHQUAKES IN THE SECOND ROW. ...
oltre 6 anni fa | 2 risposte | 0
2
risposteDomanda
Improve my graph in matlab
Hi, I have drawn this graph but i want to improve it. It is rays that goes from one point to get reflected and come back to a po...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
Intersection between a sphere x^2+y^2+z^2 =6 and paraboloid z=x^2+y^2
I want to draw both sphere x^2+y^2+z^2=6 and paraboloid z=x^2+y^2 in 3D to determine the integration region that is the solid re...
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
For loop comand use
Hi,I want to compute the sum 2 + 4 + 6 + 8 + 10 + : : : + 100 by using For loop . Can anyone here thankfully help me out?
oltre 6 anni fa | 1 risposta | 0
1
rispostaDomanda
bar and histograms for categorical data
I have this vector and std =[ 0.4041 0.7670 1.0682 0.6582 0.0475] and these lyer=categoris [{'crust','upper mantle',...
oltre 6 anni fa | 1 risposta | 0
1
risposta
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