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sophp


Last seen: 4 years ago |  Active since 2018

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how to put an overline for \alpha_{KZ}
I want to put an overline over alpha_{KZ}, how do I do this? This does not work: ylabel('$\overline{U} (OH nm^{-2})$','FontS...

4 years ago | 1 answer | 1

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answer

Question


how to change the colours of a bar chart
The MATLAB script below produces the following bar chart. How do I change the colour of one dataset to white and one to grey. ...

4 years ago | 1 answer | 0

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answer

Question


How to remove dot from zero error bars
The MATLAB script below produces the following bar chart: How do I remove the dot on the bars with zero error as I would li...

4 years ago | 1 answer | 0

1

answer

Question


how to change x axis labelling
I have this following bar chart. The subsequent graph returns a bar chart with a labelling of 1,2,3,4,5,6 rather than Q3,Q6,Q10,...

4 years ago | 1 answer | 0

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answer

Question


How to set a polyfit line to zero
How do I force this polyfit line through zero? I tried polyfitzero but it returns an error: x = [0.000484659 0.000927045 0.0013...

4 years ago | 1 answer | 0

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Question


Error: "Subscripted assignment dimension mismatch."
After running this in MATLAB, the correct bar graph is produced but without the error bars. The warning: "Subscripted assignment...

4 years ago | 1 answer | 0

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Question


how to plot a grouped bar chart with categories and error bars
I want to plot a grouped bar chart with catogories and error bars. However, the following code returns an error: "The length of ...

4 years ago | 1 answer | 0

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answer

Question


Using interpl to plot data from a vector
Say if I had a vector X of 10 different values of x, and I had a set of experimental data relating x to y: xd=[1,2,3,4,5,6] yd...

6 years ago | 1 answer | 0

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answer

Question


How to take a column of matrix and turn it into vector
If I had a matrix [t,c] which is 100 by 5 column matrix and I want to extract the fifth column and turn it into a vector, how wo...

6 years ago | 1 answer | 0

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answer

Question


How to find the x value at the maximum?
Here is a MATLAB code to find the maximum of the Y_B (which is a function of T and t) against t. t = 0.2:0.1:20; ...

7 years ago | 1 answer | 0

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answer

Question


Solving multiple variable functions: how to create a symbolic array?
I am using the following functions to model a reactor of fixed volume, with inlet temp Ti, operating temp To and proportion of r...

7 years ago | 0 answers | 0

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answers

Question


How to find the maximum value
Below is a 3D graph. T=600:1:850; t=0.2:0.1:20; [tm,Tm] = meshgrid(t, T); k1 = 10^7.*exp(-12700./Tm); ...

7 years ago | 2 answers | 0

2

answers

Question


How to solve for a in a double nested loop.
This is just a general question as I am new to MATLAB and would like to see how more experienced users would tackle this. Sa...

7 years ago | 2 answers | 0

2

answers

Question


How to find the intersection points on two functions
how to find the intersection points of dH_rem and dH_gen within the limits specified below To=500:1:850; %outlet temp Ti...

7 years ago | 1 answer | 0

1

answer

Question


Finding the maximum point of a function
I would like to find the T value and Y_B value at the maximum for t=1s and t=20s T=600:10:850; t = 1; k1 = 1e7.*exp(-...

7 years ago | 1 answer | 0

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answer

Question


how to fix inner matrix dimensions 3D plot?
I am trying to plot a 3D graph for t and T against Y_B. I would like the interval t to be 0.2 to 30 and the interval of T to be ...

7 years ago | 1 answer | 0

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Question


How to fix graph with for loop
I am trying to plot a graph to show me the operating curve of \tau with Y_B for different values of T. This is the code below: ...

7 years ago | 1 answer | 0

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Question


How to plot a 3D graph
I am attempting to plot a mesh 3D graph that displays how Y_B varies with t and T. I then want to solve this graph to find the c...

7 years ago | 1 answer | 0

1

answer

Question


How to fix a graph with loop
Sorry, I am new to MATLAB, so bear with me. I am trying to plot a graph which shows me the values of Y_B for T = 600:10:850, whe...

7 years ago | 1 answer | 0

1

answer