Amir Dagazau

Last seen: 4 years ago | Active since 2019

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My code returns with the following error: 'Second argument must be a variable or a nonnegative integer specifying the number of differentiations.'
This is the code that I developed: syms V(X); X = 0:0.05:1; H_r = -1440; Ca = 0.4; Cb = 0.4; T = ((X.*-H_r)+((14.4+40)*30...

4 years ago | 1 answer | 0

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Question

I can't plot my function
Here is my code: syms y_rt; Pp_Pr = 0.3; alpha = 100; x_rt = [0.1;0.01;1]; x_rt = y_rt * (1 + Pp_Pr * (1-y_rt) * (alpha - 1...

5 years ago | 1 answer | 0

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Question

When I do the standard deviation for the 2 arrays by hand I get a different answer than Matlab. Ive had 2 colleagues check and we all got the same answer; is there a problem with my code?
year1_10 = [1460,1240,1230,1270,861,1355,612,822,1370,1380]; year11_20 = [810,735,259,1290,1125,528,622,468,664,717]; disp(...

6 years ago | 1 answer | 0

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Question

I'm trying to do a Taylor series method for the equation y and compare it to the analytical solution. However, I keep getting a matrix dimension error. any help would be much appreciated.
t = 0:0.1:2; %h = 0.1% h = 0.1; y = (-cos(4*t))./4 - 0.5; z = (-cos(0))./4 - 0.5; y1 = diff(y); y2 = diff(y,2); y3 = d...

6 years ago | 1 answer | 0

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Question

I'm trying to find the integral of dv and all variables have been defined. I get the error message 'Dot indexing is not supported for variables of this type.' or if I remove the dot I get 'Not enough input arguments.' Please show me my error. thanks
theta1 = pi/4; h0 = 30*10^-2; a = 1*10^-2; g = 9.81; t_empty = (2*((tan((pi/2)-theta1))^2)*(h0^(5/2)))/(5*(a^2)*sqrt(2*g)); ...

6 years ago | 1 answer | 0

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