# How to plot (x^2-5)^2+y^2=16 without a calculator?

• I
• GravitySK
In summary, the conversation discusses the development of a pencil and paper as more efficient tools compared to the stylus and wax tablet or clay tablet. The use of pencil and graph paper is also mentioned as a way to create graphs of functions, with alternative options such as using a calculator or a computer program. The conversation ends with a reminder to show effort in solving the problem at hand.

#### GravitySK

How do you think?

There's this cool device called a pencil that was developed a few years ago and this ancient invention I think it was called paper with horizontal and vertical lines.

These two devices worked much better than the stylus and wax tablet or clay tablet that had to be dried out to preserve it.

I remember using pencil and graph paper worked well to create graphs of functions. First by computing a table of x,y value pairs using the function.

Alternatively, you could try:

https://www.desmos.com/calculator

Or, you could use freemat installed on your pc:

http://freemat.sourceforge.net/

Matlab:
x=[1:10]
y x.*x
plot(x,y)

LASTLY, your post looks like homework. We require you to show some effort in solving it.

berkeman and Doc Al