I write the physics laws,There is shaft mounted with rim for interference with a flywheel.
The three costant C1,C3,C4 I find them by imposing the boundary conditions:
I don't know because Mathematica give me this error,that i've published in the picture.
I try the solution exact of the three costant C1,C3,C4.......
Thank you and good day!!!
Consider this example:
Solve[0.1 (x == 5), x]
This gives the same error message. This is because 0.1 (x == 5) isn't syntatically correct. You can't multiply an equation by a number.
I wanted to ask one more thing, how do I write functions functions as u [r] is a function of sigmatheta and sigma r which are themselves functions of r, but when I assign the value(a or b) of the boundary r, moving u does not process the exact calculation, why?Also now creating new variables to the previous question I send calolo and shows me the braces without any written, why? Is there any command in particular that you have to use?I place the photo .Sorry for my English simple.Thanks.