Recent content by gen x

  1. gen x

    High School Why simplifying this function generates different outputs for same input?

    OK thanks for answer, I always thought that simplify function doesn't change absolute nothing..
  2. gen x

    High School Why simplifying this function generates different outputs for same input?

    This function ##f(x) = \frac{x^2 - 4}{x - 2}## when simplify become ##f(x) = x + 2## . If I enter ##x=2## in the first expression I get ##y=\frac{0}{0}##, and if I enter ##x=2## in the second expression I get ##y=4##. Why different results if this is same function, just simplifly?
  3. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    @kuruman @Andy Resnick @.Scott . . and all other is this thread Our universities engineering(absolute grading) has less than 1% students with best grades, Cambridge has fixed goal that they must have 40% students with best grades! Our pass rate is maybe 30%, Cambridge 99! How do you explain...
  4. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    Yes that make sense, but you can still get them very hard exam with absolute grading. In my country at engineering uni best grade get less than 1% of students(absolute grading), often is case that everyone fail the exam. Graduate or first year pass rate is very low.. If all class solve only 40%...
  5. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    What do you think why some uni (all in USA) use curve grading?
  6. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    Yes physics/engineering, how good are students in class, one class can be bad, other very god etc
  7. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    @kuruman @symbolipoint @.Scott @berkeman @Andy Resnick @Herman Trivilino etc Is it a higher probability that we have differences in knowledge between generations or that the exam make a difference because it is too hard or too easy?
  8. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    I didn't even know that relative grading exist, so I was shocked when read that some uni use this system, because to me at first looks like cheating. Does it make sense use relative grading if exams are set brutally hard(genius level) so no one can get above 80%, in that way you are secure that...
  9. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    Yes I am talking about university, not high school. Especially for math-physics-engineering. How do you then explain that USA, India, South Korea, Oxford, Cambridge STEM etc use relative grading?
  10. gen x

    Absolute vs. Relative Grading System: Pros, Cons, and Experiences

    I am currently weighing the pros and cons of the absolute grading system versus the relative grading system (grading on a curve). I would love to hear your insights, experiences, and academic perspectives on this. Specifically, how do these systems impact student motivation, fairness, stress...
  11. gen x

    Studying Correlating IQ and STEM performance

    Is it true that high IQ and STEM are correlated?
  12. gen x

    Why must residential electrical systems be connected to Earth (soil)?

    I write wrong, we have galvanized steel strip all the way to the transformer, so that is excelent grounding
  13. gen x

    A few questions about RCD

    case 2 in this link, https://electronics.stackexchange.c...ring-fault?noredirect=1#comment2028722_763901
  14. gen x

    A few questions about RCD

    @Averagesupernova They claim in case 2, rcd will not trip.
  15. gen x

    A few questions about RCD

    in comments members transistor and andy aka write rcd will not trip, because there is no current leak to the earth... I dont understand their logic at all...