Recent content by xiaobai5883

okok.. i understand already... but got one question appear again.. is there any theory that mention we integrate a line equation will become area... then we integrate a area will become volume... i'm sure there should be a theory like that... but i want the name... because i want to know...

okok... but still two things that i don't understand.. by integrating that area... do i get the volume?? and the second part is the another thing that i don't understand... and i thought should use the Reimann Sum or what what method to solve... am i wrong??/

err.. you mean f(z)=pi*a*b?? but this is the area of each ellipse only right?? how about the whole volume??

i've tried... but it's a failure... i tried to use the integradation by pi*(integration of the certain area)^2... but failed because the ellipse is in circle form only can use that... so I'm wrong... what i get after asking my lecturer is... use the coin theory or disk theory... it is...

Homework Statement Find the volume of the solid bouded by the hyperboloid. (x^2/a^2)+(y^2/b^2)-(z^2/c^2)=1 and the planes z=0 an z=h, h>0. Homework Equations The Attempt at a Solution

LOL?? actually can you give me one example?? because i don't know what do you mean actually... and the correlation coefficient r is what formula?? is there any formula??

you mean that r should be put like... (Temperature)=r(Chirps in 1 min)?? i think should be (Temperature)=r(Chirps in 1 min)+c but in almost every case the r and c is different... so how how??

i have already plot those results... but how to google?? is there any functions or equation or formula that i can use??

Homework Statement One class application of correlation and regression involves the association between the temperature and the number of times cricket chirps in a minute. Listed below are numbers of chirps in 1 minute and the corresponding temperature in degrees Fahrenheit. Chirps in 1...

i'm using Newton's method... is that effect the answers??

Homework Statement Find the zero for the following equation with the respective initial value... a)cos(x)=(e^x)-1,x0=0 b)ln(x)=x^2-1,x0=1 c)x^2=2x+2,x0=2.6 the answers i get are... a)0.6931 b)1 c)2.7321 but here comes my question... i'm attempting a class teach us to use the software...

okok... thanks...

Homework Statement Actually i want to ask something actually very easy... i just don't know the meaning of some words in different questions... firstly... multiplication of A and B means A*B right? how about multiplication of A by B means A*B or A/B?? secondly... division of A by B means...

this question is already solve.. thanks to Mark44...

wow... thanks..