- #1
Rib5
- 59
- 0
I have a question about sigma notation and parentheses. Does
[tex]\sum x[k] + x[n][/tex]
mean
[tex]\sum( x[k] + x[n])[/tex] or [tex]\left(\sum x[k] \right)+ x[n][/tex]
I find it a personal annoyance for things to be written with parentheses even if there are rules about it. Including parentheses would just reduce ambiguity. Another time I sometimes get confused is when trig functions are written without parentheses - grrrrrrr.
[tex]\sum x[k] + x[n][/tex]
mean
[tex]\sum( x[k] + x[n])[/tex] or [tex]\left(\sum x[k] \right)+ x[n][/tex]
I find it a personal annoyance for things to be written with parentheses even if there are rules about it. Including parentheses would just reduce ambiguity. Another time I sometimes get confused is when trig functions are written without parentheses - grrrrrrr.
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