Hi everyone, i have a problem when write a program about aeroelasticity
When i type "subscript letter" by press "." , Mathcad said the letter "A1, A2, A3, E1, E2, E3 " : "this variable is undefined"
But when i type it by "[", Mathcad said with "g(k)" : this array index is invalid for this array
Please tell me how can I fix the problem? Thanks all !
Solved! Go to Solution.
i'm just have learn Mathcad for one week, so can you fix it on the file for me. Many thanks !
I have done! See the file I attached in my previous reply.
Brother AlanStevens, after you fixed it for me, it was running but i have another problem, when i draw graph, it can not be the same as the graph in the book
+ the first graph is drew by me
+ the second graph is draw by the person who write the book,
Could you draw the graph same as the second picture ? Thank you very much !
hi brother terryhendicott, i know to draw the graph and now i have a problem about new graph
i want to draw the graph same as the second picture but as you see in the first picture, the graph has error.
Here is the program
i attach the zip file in post . Thank you so much !
The default is zero based arrays unless you set origin to 1.
You have set E as a three element vector and refered to it as E[1, E[2, and E[3 but by default it is E[0,E[1,E[2.
Two solutions, change the code or set ORIGIN:=1 at top of the sheet.