Question

How can I correct this error on Octav ?
Hello I have got this error on Octav:" trapz: X and Y must have same shape" In the program I have : alpha_ks(:,km) = sum (...

presque 6 ans il y a | 1 réponse | 0

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Question

How can i convert an Indexed Image To a Binary Image ?
Hello How can i convert the blue into white and the other colours into black ? The image is attached.

plus de 6 ans il y a | 1 réponse | 0

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Question

How can i add the colour to the function surf ?
Hello All my curves are blue How can i change their colour ? How can i add the colour to this example: y1 = [28 28...

plus de 6 ans il y a | 1 réponse | 0

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Question

How can i plot a 3d curve ?
Hello How can i plot a 3d curve like (Figure 3D) as attached ? For example: x1 = [1 2 3 4 5 6 7 8 9 10]; x2 = [5 4 ...

plus de 6 ans il y a | 1 réponse | 1

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Question

How can i define the marge of the y axis ?
Hello How can i define the y axis of a curve like this [10^-4:10:10^-2] ? Thanks

plus de 6 ans il y a | 1 réponse | 0

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Question

How can i use a symbol as a variable ?
Hi I want to define a varibale alpha_ks as a symbol \alpha_ks but an error will be appeared. function [a, x, ...]= MFC ()...

presque 7 ans il y a | 1 réponse | 0

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Question

How can i plot a vertical line (x=constant) in a maximum of a curve ?
Hi How can i add three vertical line in the maximums of this curve. The program and the curve are attached.

presque 7 ans il y a | 1 réponse | 0

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Question

How can i display the abscissa of the three maximum in the x axis ?
Hi the input are attached and the rest of the problem is below. I want to add the abscissa of the three maximum in the x ...

presque 7 ans il y a | 1 réponse | 0

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Question

How can i plot a vibration cantilever beam ?
Hi How can i plot an undamped (like fig1) and damped cantilever beam ?

presque 7 ans il y a | 1 réponse | 0

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Question

How displayin a number with its subscript ?
Hi, I want to display a number hs0 as h with subscript s0. plot (x,y1,x,y2) legend('h=hs0','h=2hs0')

environ 7 ans il y a | 1 réponse | 0

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Question

How can i amelirate the smooth of this curve ?
Hi I want to ameliorate the smooth of attached curve. rload=[100;1e3;10e3;100e3;1e6;10e6]; power_hs=[1.570642571; 15.2...

environ 7 ans il y a | 2 réponses | 0

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Question

How can i determine a point of intersection in a curve ?
Hi How can i determine the point of intersection in this curve ? x=[0;5.00E-05;1.00E-04;1.50E-04;2.00E-04;2.50E-04;3.00E-...

environ 7 ans il y a | 2 réponses | 0

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Question

How can i determine the points of the intersection of the curve with an axis parallel to x axis ?
Hi I have this curve and i want to determine the points of the intersection with the red curve h1. Please help me.

environ 7 ans il y a | 1 réponse | 0

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Question

How can i ameliorate this curve ?
Hi How can i ameliorate the curve power_R to obtain the nice figure ?

environ 7 ans il y a | 1 réponse | 0

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Question

How can i solve this system ?
Hi To determine the damping ratio (psij and psik ), i have to solve the attached system where all other name are constan...

environ 7 ans il y a | 2 réponses | 0

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Question

How can i determine the analytical expression of the derived funtion "df(x)/dx" ?
How can i determine the analytical expression of the derived funtion "df(x)/dx"? x=linspace (0:40) L=3; sol(1)=2; p...

environ 7 ans il y a | 1 réponse | 0

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Question

How can i display a funtion dependenet to x ?
Hi How can i can i display f with values in function of x ? L=3; sol(1)=2; psi=1; f (x) = @(x) cos ( (sol(1)/L) *x)...

environ 7 ans il y a | 1 réponse | 0

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Question

How can i delate the same values in a vector ?
Hi To find the zeros of the following equation, i have done the following program but sometimes it displays a repeated solut...

environ 7 ans il y a | 1 réponse | 0

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Question

How can i add vpasolve function on matlab 2012 ?

environ 7 ans il y a | 1 réponse | 0

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Question

How can i solve this equation ?
Hi How ca i solve the attached equation to find lamda ? When all the other terms are known.

environ 7 ans il y a | 2 réponses | 0

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Question

How can i solve this equation ?
Hi How can i solve the attached equation to find a ? When Mt, It, hs and hp are known.

environ 7 ans il y a | 1 réponse | 0

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Question

How can i obtain a nice curve ?
Hi How can i obtain a nice curve (like attached curve or logarithmic scale), when my program is x= [1e3; 1e4; 1e5; 1e6; 1e...

environ 7 ans il y a | 2 réponses | 0

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Question

What does this refer ?
Hi Can you explain me this : each term alone tot_V = 2*sum( cat(2,V_freq{:}) , 2) V_freq=<500*1 complex double>

environ 7 ans il y a | 1 réponse | 0

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Question

How can i plot a cantilever beam with tip mass ?
Hi How can i plot a cantilever beam (fixed-free end) with tip mass on matlab ? Please help me.

environ 7 ans il y a | 1 réponse | 0

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Question

How can i display a list of maximum of a curve ?
Hi I have a curve Amplitude=f(frequency) and i want to know the abscissa of all maximums. Please help me.

environ 7 ans il y a | 1 réponse | 0

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Question

How can i know the abscissa of the maximum of a curve ?
Hi I have a curve Amplitude=f(frequency) and i want to know the abscissa of the maximum. Please help me.

plus de 7 ans il y a | 1 réponse | 0

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Question

How can i correct the subscript of a vector in a for loop ?
Hi I want to plot X=f(wr) but i have this error Subscript indices must either be real positive integers or logicals. K...

plus de 7 ans il y a | 2 réponses | 0

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Question

How displaying a matrix in its classical form ?
Hi I have a displayed matrix like this : (1,1) 0.00075602592 (3,1) 0.00013085064 ...

plus de 7 ans il y a | 1 réponse | 0

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Question

Whqt's the alternative of the function symmmd ?
Hi i have an old version of matlab program that use the function "symmd" like this : iDOF = symmmd(k); But, an error wa...

plus de 7 ans il y a | 1 réponse | 0

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Question

How can i correct this error ?
Hi In my program, i use the function eig to return the eigenvalues : [V,D]=eig(k,m); But i have obtained this error: ...

plus de 7 ans il y a | 1 réponse | 0

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