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

[Walter Roberson]

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]

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

Answer 1

[CAM]

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', ...) ?

[alexis cordova]

how do i change R1 to a single row ? the one im taking transpose of are 2x1, not scalers

[alexis cordova]

so my 2x1 are xold, vold, aold, xtip 1 , xtip 2 , xorig1, xorig 2, are 2 x1,

R1 is a 2x2

and the rest are scalars

[Walter Roberson]

R1(:).' converts the 2 x 2 into 1 x 4