September 4, 2010 at 6:41 am
Does anyone know how you get the 3rd square of a number on a calculator??? Refer to example 3 of the Miller Orr Model in the lecture video.
ThanksSeptember 4, 2010 at 8:24 am
Do you have a scientific calculator?
You need one for this and most will have a special button – like a square root symbol, but with a 3 on it.September 5, 2010 at 11:21 pm
Yes I have a scientific calculator but it does not have a square root symbol with a 3 on it??September 6, 2010 at 4:53 am
In that case, does it have a square root symbol with an x on it?September 14, 2010 at 5:02 pm
Or a key with a X to the power of y on it? It actually written x^y in the calculator included with MS windows. If this is the case you enter the number hit the x^y key then enter -3 and hit =September 14, 2010 at 5:29 pm
you need scientific calculator, full stop.
you can’t take PC or mobile phone into exam hall,September 14, 2010 at 5:46 pm
I’m not suggesting they use a PC just explaining a very common way roots above the squared roots are computed on a scientific calculator. Neither the HP, Casio or TI scientific calculators have a key as you describe in all of these you must use the” to the power off key” and then a negative 3 to get a cubed root.
I’m assuming that since they’re posting on here they are most likely on a MS Windows PC and would therefore be able to check this out immediately using the inbuilt calculator – so they would know what to look for on an actual scientific calculator.September 15, 2010 at 2:00 pm
Perhaps you could instead try using the X^Y key and put in 0.3333333333… This should give the equivalent answer to finding the cube root.October 1, 2010 at 12:26 pm
@ joannemcdonnell what you can do is put it on the calculator like this:
(3/4 x transaction cost x variance of cash flows)^(1/3)
…and then the figure you get, you multiply it by 3
for instance in example 3:
(3/4 x 5 x 2000² ÷ 0.00014)^(1/3) = 4750
…then you take 4750 and multiply it by 3, you will obtain 14250April 12, 2015 at 5:08 pm
I cannot get to that figure, I get 3.68986???December 3, 2016 at 11:57 am
John I’m also having problem with entering the formula into my calculator, I have a Casio fx-83GT PLUS
I have my exam coming up on Wednesday and it would be really helpful to know which buttons to hit and which order!
I’m doing a different question, where the details are as follows:
Transaction cost is $30
Variance of cash flow is $270,000
Daily interest rate is 0.025%
I think it’s just the 1/3 that’s throwing things out, not sure which button to press!
The spread should come out to $8,689
I hope you can help John
NevilleDecember 3, 2016 at 4:14 pm
Sorry, but you must ask in the Ask the Tutor Forum if you want for me to answer. This forum is for students to help each other.
You must be logged in to reply to this topic.