Error Plotting a function - Matrix Dimensions must agree

2 次查看（过去 30 天）
Saumya Nagar 17BME0447
评论： Saumya Nagar 17BME0447 2021-4-9
Hi,
I am new to MATLAB, I am getting the following error
"Error using / Matrix dimensions must agree.
Error in ParticleVelocityvsParticleSize (line 37)
VP1=M*((G*R*Stagnation_Temperature)/(1+((G-1)/2)*M^2))^0.5*((3*Cd*Gas_Density*x)/(2*Powder_Density*Powder_Size*10^(-6)))^0.5"
The code consists of getting the input of all the variables from the user. I need to plot the VP1 vs Powder_Size graph, with varying Powder_Size from 10 to 45.
Powder_Size=linspace(10,45,100)
VP1=M*((G*R*Stagnation_Temperature)/(1+((G-1)/2)*M^2))^0.5*((3*Cd*Gas_Density*x)/(2*Powder_Density*Powder_Size*10^(-6)))^0.5
plot(Powder_Size,VP1)
Can anyone please help me with this. Thanks in advance.
  1 个评论
Mathieu NOE
Mathieu NOE 2021-4-2
hello
the error comes from the fact that you are not using dot product or dot division in your expression;

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Shubham Khatri
Shubham Khatri 2021-4-6
Hello,
The error occurs because the matrix you are trying to multiply are not compatible with each other for multiplication due to the difference in number of elements in each matrix. Please check the size of each matrx you are multiplying and see if they can be multiplied. Also, if they are compatible, there is a need to use '.' (element operation) . For more information, please see this documentation link.
Hope it helps

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by