Comment on ))<>((

• ByGourou@sh.itjust.works ⁨6⁩ ⁨months⁩ ago

  I learned negative as being a separate operation where we need to apply the order of operations. I think it was something like : -2 is a diminutive for -1x2 so it uses the order of operations of a multiplication.
  My calculator is the official one used in schools in France (ti-83 premium ce) and it says -2^2 = 4 with the negative key. I don’t think it would make a mistake in such a simple concept.

  But whatever these concepts can change depending on the field, country, level of education. What I mean is : it’s unclear, so use parentheses. So (-2)^2 or -(2^2) are the correct ways to write it.

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  • SmartmanApps@programming.dev ⁨6⁩ ⁨months⁩ ago

    I think it was something like : -2 is a diminutive for -1x2

    Correct. Things that are usually left out of Maths expressions are plus signs, ones as multipliers/indices, and un-needed brackets. e.g. I could more fully write this as -1(4)², but that just simplifies to -4²

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• SmartmanApps@programming.dev ⁨6⁩ ⁨months⁩ ago

  it’s just a squaring a number

  The number being squared is 4, unless you put (-4)², otherwise it’s 4² with a minus sign.

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