I can't change a matrix solution to show the result in a new variable

Forum|Forum|8 years ago
November 13, 2017
2 replies
3680 views

Hello everybody,

I'm trying to change the sum of angles theta 1,2,3 to a new angle phi. The matrix T03 is the solution of A01*A12*A23. I have been using symbolic keywords like substitute, using and other types of solution but nothing works to show the same matrix T03 but with cos(phi) and sin (phi).

There is some way to do it?

Any help or advice?

Thanks.

Other

Best answer by vkofanov

Use the symbolic command "substitute" .

In mathcad 15 it looks like this.

изображение.png

V

vkofanov

Answer

1-Visitor

Use the symbolic command "substitute" .

In mathcad 15 it looks like this.

изображение.png

F

fguerra84

Author

1-Visitor

Thank you Vkofanov, I don't know why this time the command "substitute" worked in Prime, because the times I tried before didn't.

By the way do you know how I can rearrange the element (1,4) the show l1*cos(theta) first, l2... and then l3... I know it's the same, but I want the matrix in that way.

Thank you again.

Sin título.jpg

W

Werner_E

25-Diamond I

fguerra84 wrote:By the way do you know how I can rearrange the element (1,4) the show l1*cos(theta) first, l2... and then

You may try additionally the "collect,theta.1" command in the symbolics. Not sur if it would work the way you want it to be. Its often hard to get Mathcads symbolics to display results exactly the way we have it in mind, ever so often its impossible.