#25 Agreed. The cross on the seven is imperative once you get to advanced mathematics—same as the cross on the z. It keeps letters from jumbling from numbers, symbols, etc. That’s why it’s standard for American engineers. Why not the rest of us, who knows.
Dude, that’s awesome you’re a computer scientist! What it comes down to is there is no fallacy in the math equation; it’s just the language that was used to write it. Like the Professor said above, “Of course this isn't math. This is convention. We have conventions on how to write…
No!!! Parentheses always first in the U.S.—I realize it indicates multiplication when an integer is next to it, but they still go first. Then left to right. Otherwise your kids are going to have a tough time solving quadratic equations. Sorry if I sound mean :(
If you’re using PEMDAS, you do multiply the solution of the parentheses first; regardless if there is multiplication/division of an integer before or after it. I know I t can be confusing, since parentheses indicate multiplication. But, it’s the way American equations are meant to…
Sara, this is what people aren’t getting in this thread. It just depends on the order of operations you were taught. It’s hard to understand without a lot of technical explanation, but you were taught correctly both times. Don’t let this discourage you from pursuing math...it’s awesome!…
Also, Lauren, see what Dr. Alain said above: “Of course this isn't math. This is convention. We have conventions on how to write these things just like we have conventions on how to spell stuff. But still, there are different conventions. Some people spell it as "gray" and others…
Since Lauren is so hot on her math prowess tonight, I’m going to post my comment again here:
I think that the discrepancy in answers boils down to the method you were taught. Many Americans are taught PEMDAS, so the answer would be one. If you were taught a different order of operations…
Lauren, no it’s not!! It depends on the order of operations you were taught. If I were taught to do addition last, I could get the answer of ten. Math is concrete; the symbolic language used to formulate algebraic equations is not.
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