As you can see, the AND operator drops every row in which at least one value equals -1. On the other hand, the OR operator requires both values to be equal to -1 to drop them. That’s right. Remember that you’re writing the condition in terms of what you want to keep, not in terms of … Read more
They are almost synonymous, but not quite. The difference is that ! has a higher precedence than not, much like && and || are of higher precedence than and and or. ! has the highest precedence of all operators, and not one of the lowest, you can find the full table at the Ruby docs. As an example, consider: In the first example, ! has the highest precedence, so you’re effectively saying false && … Read more
You can try Wolfram Alpha as in this example based on your input: http://www.wolframalpha.com/input/?i=((A%20OR%20B)%20AND%20(NOT%20B%20AND%20C)%20OR%20C)&t=crmtb01&f=rc
You can try Wolfram Alpha as in this example based on your input: http://www.wolframalpha.com/input/?i=((A%20OR%20B)%20AND%20(NOT%20B%20AND%20C)%20OR%20C)&t=crmtb01&f=rc
You can try Wolfram Alpha as in this example based on your input: http://www.wolframalpha.com/input/?i=((A%20OR%20B)%20AND%20(NOT%20B%20AND%20C)%20OR%20C)&t=crmtb01&f=rc