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david edwards jr


14 total contributions since 2018

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Question


i need to factor a symbolic polynomial for example x^2-1
i need an example of how to use the symbolic factor of matworks. if you can tell me how to factor x^2-1 i can take it from ther...

mehr als ein Jahr ago | 1 answer | 0

1

answer

Answered
putting a .fig into an empty pane
thanks david

mehr als ein Jahr ago | 0

| accepted

Question


putting a .fig into an empty pane
i have a mplot figure and create a figure with it and an empty pane.see attached. i would like to put a .fig fle into the emp...

mehr als ein Jahr ago | 1 answer | 0

1

answer

Question


choose "up" axis in 3D
i have a mplot the z axis goes up. how do i get the y axis instead to go up. thank you david

mehr als ein Jahr ago | 1 answer | 0

1

answer

Question


when in matlab how do i browse to select the directory i wish
in the current directory i have a folder mplot. i click on the folder and it takes me to the folder. nice. but i see no way o...

mehr als ein Jahr ago | 1 answer | 0

1

answer

Question


can i run a .m file from my visual basic application (not excel)
i have a vb application and would like to run a .m script file from the application itself. how can i do this or is it even pos...

mehr als ein Jahr ago | 1 answer | 0

1

answer

Question


i need to plot a line in 3D scatter plot
i have created a scatter plot with scatter3. now without clearing this plot I need to draw a line in the same graph. when I pu...

fast 2 Jahre ago | 1 answer | 0

1

answer

Answered
grid lines in 3D plot
grid on simply puts grid lines on the 3 planes and not through the points. I do not have a sense of a 3D plot. david

fast 2 Jahre ago | 0

| accepted

Question


grid lines in 3D plot
i have a 3D plot. I would like to see all the grid lines going thru the plot as happens in 2D plots. is this possible? than...

fast 2 Jahre ago | 2 answers | 0

2

answers

Question


find the first column of a 3x3 matrix
I have a3x3 matrix. I need the vector x to be the first column of the matrix. thank you david

fast 2 Jahre ago | 1 answer | 0

1

answer

Question


upload txt file for a matrix
i can make a comma delimited .txt file with 3 columns and say 5 rows. I need to make a 3x5 matrix from this file. thank you ...

fast 2 Jahre ago | 1 answer | 0

1

answer

Question


3D scatter plots
hi I have a small set of 3D points, say for example 2 pts. (1,2,3) ,(4,5,6) I would like to plot these in a 3D graph. than...

fast 2 Jahre ago | 1 answer | 0

1

answer

Answered
i have 2 linear equations 2 unknowns
it is accepted!!! david

fast 2 Jahre ago | 1

Question


i have 2 linear equations 2 unknowns
b0 = c0+3*c1 b1 = c0-5*c1 unknowns are c0 c1. b0,b1 are non variables which should appear in the solution. thank you da...

fast 2 Jahre ago | 2 answers | 0

2

answers