Invalid use of -. At least one of the operands must be scalar or the operands must be the same size. The units of the operands must be commensurate.
33 次查看(过去 30 天)
显示 更早的评论
Invalid use of -. At least one of the operands must be scalar or the operands must be the same size. The units of the operands must be commensurate. In ee.semiconductors.n_mosfet
Argument 1 = {[1x1 double],'K'}
Argument 2 = {25,'C'}
T = {[1x1 double],'K'}
Tmeas = {25,'C'}
Warning: Unit'C' for parameter'Measurement temperature: Unit' specified in the block is not commensurate with the default unit'degC' specified in the library. Please specify a unit commensurate with'degC' for parameter'Measurement temperature: Unit'.
Warning: Unit'C
2 个评论
Crystal Blackwell
2021-3-25
Ironically, I am working on a temperature based experiment as well. I am not sure if you are trying to create a custom component as myself.
I used a work around. The value function allows you to extract the scalar from variables with units. Then I performed the math using the scalar and reassigned the units afterwards using a T = { result of calc, reassigned unit} statement. I know in Temperature experiments, change in K = change in degrees C. So if that is your issue then this might help you out.
Crystal Blackwell
2021-3-26
Of course the other option is to remove your units from unnecessary places.
回答(1 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Physical Units 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!