Hi, i'm a little confused.
ETS website says I cannot bring my calculator.
But what if I need one for solving problems?
There seems to be many problems like that in the practice booklet...
Can I use calculator on PGRE exam?
Re: Can I use calculator on PGRE exam?
No calculators, no cellphones, no watches, no sliderules, no mechanical pencils.
Practice doing the math with pen and paper, use 3 for pi and 10 for g.
Practice doing the math with pen and paper, use 3 for pi and 10 for g.

 Posts: 249
 Joined: Sat Dec 20, 2008 9:34 am
Re: Can I use calculator on PGRE exam?
Rounding helps, there aren't a whole lot of problems that want the answer to within more than a factor of ten. You can mark down those that do require more accuracy and come back to them later.
Re: Can I use calculator on PGRE exam?
Yea, problems where you have to derive a theoretical formula are often separated by factors of two, but most numbercrunching problems where you have to multiply and divide lots of numbers/constants in scientific notation have answers separated by factors of 10 or more. So you can do some rounding...
electron mass = 10^30...
electron mass = 10^30...
Re: Can I use calculator on PGRE exam?
Thank you all for the information.
But I still think I'm going to stumble a little upon numbercrunchings,
things like wavelength = 550 nm, and trying to find the inverse for it...
For example... for the problem #62, I had to do 1.6/6400 X10^19,
and got the right answer. I guess supposedly, all you need to know
is that 1.6/6400 can be easily calculated by deducing it to the ratio of1/4?
Well... Still!
But I still think I'm going to stumble a little upon numbercrunchings,
things like wavelength = 550 nm, and trying to find the inverse for it...
For example... for the problem #62, I had to do 1.6/6400 X10^19,
and got the right answer. I guess supposedly, all you need to know
is that 1.6/6400 can be easily calculated by deducing it to the ratio of1/4?
Well... Still!

 Posts: 249
 Joined: Sat Dec 20, 2008 9:34 am
Re: Can I use calculator on PGRE exam?
You can find 1/550 pretty quickly using long division, but I doubt that would be necessary. Why not just round down to 500 nm, and find 1/500?
This is the physics GRE and as such I guess they expect you to be able to do mathematical manipulations like 1.6/6400 without breaking a sweat.
This is the physics GRE and as such I guess they expect you to be able to do mathematical manipulations like 1.6/6400 without breaking a sweat.