For engineering students

Four ways to solve the circuit. Your lecturer wants one of them

The particular frustration of engineering is that the internet's answer to your problem is usually correct and usually useless. There are four ways to analyse the circuit, several conventions for the sign of the moment, and a dozen notations for the same tensor — and your marker wants the one from lecture six. A generic solver gives you a right answer in the wrong language.

Method matters more than the answer

In engineering exams the marks are in the working. An answer that materialises with no derivation earns almost nothing, and a derivation in a convention your course never used earns a puzzled look and a lower mark. What you need is not the solution — it is the solution *as your module would write it*.

Because your slides and problem sheets sit in the space, the homework solver follows the approach your material uses. Ask it to solve by mesh analysis and it does mesh analysis. Ask it to use the method from lecture six and, with lecture six uploaded, it will.

The single best way to use it

Not "solve this". Instead: photograph your own attempt and ask it to find the first line that's wrong. It stops at the error rather than steamrolling to the answer, which means you keep the part of the problem you had already solved, and you learn precisely the thing you didn't know. This is the difference between a tool that helps and a tool that quietly replaces the learning with a completed problem sheet.

Also good at

  • Reading circuit diagrams, free-body diagrams and schematics from a photo, including hand-drawn ones.
  • Keeping mathematical notation as mathematics rather than mangling it into plain text.
  • Deep-explain mode — a stronger model, slower, for the derivation you genuinely cannot follow.
  • Turning a failed problem into a card, so the concept you missed comes back before the exam rather than after it.
  • Lab reports — interrogating your own method and results, not writing them for you.

Common questions

Can it read hand-drawn circuit diagrams?

Yes — photograph a printed or hand-drawn diagram and it reads the topology along with the surrounding problem text.

Can I make it use my course's method?

Yes. Tell it which method to use, and with your lecture material in the space it follows the notation and approach your module actually taught — which is what your marker is grading against.

Does it show full working?

Step by step, with the reasoning at each stage. It can also stop at your first mistake and go no further, if you photograph your own attempt and ask it to check rather than solve.

Is using it on a graded problem set cheating?

Submitting generated work as your own is misconduct at essentially every institution. Using it to check your working, find your error, or understand a method is not. What you hand in is your call — and the penalties for getting that call wrong are severe.

Try it on your own material

Upload your notes, slides or lecture recordings and get a tutor that answers only from them — and says so when they don't cover it.

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