@acer 

i have been trying for a bit now, to make it work, even changing the shapes,

but i haven't gotten it to work tho. It looks like it maybe could work, but i can't find any solution.

I should maybe give up, on it.

none the less i thank of you for all the time and help you have givin.

MATHprobwithV_return_acer.mw   

@acer 

MATHprobwithV.mw

hope you had a great dinner, and you dont have to apologize for the typo.

im super tired right now its midnight for me, so im prop gonna go to bed,

i would love to continue with this tommorow, if that dosn't inconvenience you.

thanks @acer

for the very nice reply, and thanks for my oversight of the rationals.

i am sadly still having a problem. I need to make a 3d shape that has exactly 66.6cm^3,

and i have made it out of a few circles, a exponential- and a log funktion that i project to the 3rd demension.

I gave both the exponential and log funktion (and well a single circle that is not a problem) a unknown r value

to be able fill out the big circles volume, so i had the 66.6cm^3. 

my problem now is that the float funktion T you have made is lovely, but it now reads 

So, i will have to ask for more wizardry from you, because i can tell that you are much better then i am at this.