- #36
Mark44
Mentor
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Absolutely! The hyperphysics person isn't up to speed on math symbols like ##\times## versus letters ##x##.I like Serena said:Can we please please make that ##\vec F=q\vec v \times \vec B##?
Absolutely! The hyperphysics person isn't up to speed on math symbols like ##\times## versus letters ##x##.I like Serena said:Can we please please make that ##\vec F=q\vec v \times \vec B##?
fresh_42 said:Sadly is right. I always considered our cultural differences as an enrichment rather than a disadvantage. They make Europe interesting. In part it makes sense to find a common system, I mean, not that long ago we had one country - one mile.
I stopped using "x" of whatever form, for indicating the multiplication operation. This started upon beginning of study of Algebra 1, and continued onward. Less confusion when communicating in written form for yourself and other people. Like you said, the dot, raised to midlevel, will show multiplication, unless someone misreads this as a decimal point, which probably does happen. We also have parentheses to separate plain number factors from each other.MichPod said:So, to sum the things up, I got the following advices:
And... I got a confirmation that the usage of ##\times## sign for multiplication does cause problems. At least for some people.
- abandon ##\times## and use ##\cdot## as soon as algebra is introduced
- use some special curved way to write ##\times## meaning ##x## ( "with slightly curved ends on the upper left to lower right line" )
- for the variable, just write curved ##x##, not cross
- for multiplication, make ##\times## sign very small