i keep getting an error in my code about my array. pls help . code and error below thank you

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alexis cordova 2019-10-31

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评论： Walter Roberson 2019-10-31

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Walter Roberson 2019-10-31

We have no information about the size of x, xold,vold, aold, xtip1, xorig1, xtip2, xorig2, U, T, Us, Up, E, or R1 .

alexis cordova 2019-10-31

Xold, vold, aold, xtip1,2, xorig1,2 are all 2by1 . R1 is a 2x2. Rest are scalar just a number

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CAM 2019-10-31

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When you are concatenating horizontally, the number of rows must be consistent. According to your comment, all variables are 1x1, but R1 is 2x2. Thus R1 is causing the error. Either change R1 to a single row, or put the variables into a cell array, which will allow for the different variable sizes.

Why are you taking the tranpose of scalers (xold', vold', ...) ?