ATAR Notes: Forum
VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: nemolala on October 22, 2011, 05:41:16 pm
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whenever I graph an inequation, I sometimes get the whole thing shaded with no line?
why?
and also sometimes when i get a fraction like say 78/3 as my answer, I press on ctrl enter to get it in decimal form but it would double divide it...like it would be 78/3/78/3....
why is this happening its so annoying!
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There might be no line because youre graphing > not >= (great than or equal to).
The division thing happens to me as well, if you go up and grab the previous fraction then approximate it should work. I dont know why it divides again...
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yeah true that..my friend told me to zoom out a coupla times and it worked but thanks
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Doesn't the ctrl+enter do [ans] then the last operation you did? so thats why it does it double?
And can't you just use [Menu] [2] [1] to convert to decimal, it only takes one more press of a button.
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hmm well the thing is, it doesn't always happen..just at random times
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I just had a little play around with it and this is what I've found.
If you use the result from the previous line, and press [ctrl]+[enter], it will redo the operation using the result.
i.e. you had 78 on the line above
you add + i.e. Ans + 1 =79
Then if you use [ctrl]+[enter] it will add the one again, then convert it to decimal. e.g. 79+1="80." (with the decimal point)
If you re-entered the result (with no ans) then it will just convert it to decimal by using [ctrl]+[enter].
e.g. you have 78 on the line above and you enter in 78+1
=79 then use [ctrl]+[enter]
the answer will be 79. (with the decimal point)
It works the same way if you use fractions as well.