Element-wise Multiplication, Transformation matrix.

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hknatas 2018-11-13

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https://ww2.mathworks.cn/matlabcentral/answers/429701-element-wise-multiplication-transformation-matrix

评论： hknatas 2018-11-13

Hello!

I have a transformation matrix like this.

Angles are changing depending on time. I have a series of pitch, yaw and roll angle. I created 3 arrays and calculated all the angles in a loop with 54000 iteration. Namely, I have all the angle values in my hand. Right now, I want to insert these angle values to my transformation matrix and calculate trasformation matrix for 54000 iteration.

I tried to solve the problem. First I reshaped all 3 angle arrays, then I tried to calculate the transformation matrix using pointwise operator. My first question is that how can I use pointwise operator when my values are in cos and sin functions. Should I calculate all the cosine and sine values of these values by creating another array? And the other question is that how can I use pointwise operator when I have multiplication of three values?

The solution does not have to be that way. If you have other solution ideas you can write.

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James Tursa 2018-11-13

编辑：James Tursa 2018-11-13

Yes, that is the correct notation. The issue you are going to have after doing this is permuting and reshaping the elements to get your individual 3x3 rotation matrices contiguous.

hknatas 2018-11-13