Inconsistency

09022015, 11:51 AM
Post: #1




Inconsistency
Hi all
With the current firmware (2015 6 17 (8151)) I get the following results in CASmode: 0/0 = undef 1/0 = + \infty sin(0.5)/0 = +Inf as well as 1/\infty = 0 In each of the first three cases I get a different output. In addition, the second and third result is simply wrong. If I wanted a limit I'd write a limit. My students don't know yet about limits, all they know is that division by 0 is not defined. So it will be hard to explain to them what this output is suposed to mean. I also dislike the fourth result a lot. Infty is surely not a number I can just use for division. I think the calculator should be much more strict here especially for the students. However, one could argue differently here. Bests. 

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Messages In This Thread 
Inconsistency  whilealive  09022015 11:51 AM
RE: Inconsistency  Joe Horn  09022015, 02:45 PM
RE: Inconsistency  Tim Wessman  09022015, 04:12 PM
RE: Inconsistency  whilealive  09032015, 02:17 PM

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