How do I perform these functions without using a calculator?

[Altrepair]

Anyone know of books or websites that teach one how to find square roots, cube roots, sin, cosine, e, ln, pi and so forth without using a calculator because this stuff is not taught in schools, but instead is simply calculated with calculators which is not what I like considering taking things for advantage is never wise.

 

[rwisz]

http://www.itl.nist.gov/div897/sqg/dads/HTML/squareRoot.html
That's a method of computing square roots by hand.

http://www.itl.nist.gov/div897/sqg/dads/HTML/cubeRoot.html
That's a method of computing cube roots by hand.

http://www.uconn.edu/~cdavid/latex2html/mathreview/node18.html
Sine, cosine, e, and ln can all be approximated (albeit not with ease) using series approximations. (as well as Pi, but it's not fun)

http://en.wikipedia.org/wiki/Numerical_approximations_of_π
That's for numerical approximations of pi, have fun!

 

[cragar]

you could use a slide rule.

 

[Phrak]

you could use a slide rule.

Or crayons and a ruler.

 

[rwisz]

Or crayons and a ruler.

My preferred method

 

[HallsofIvy]

Right, they won't let me have sharp things like pencils.