Calculator

3*4+5^2/7
sin 2 pi
sqrt 1.3

monadic operators have the same functions as those in J:

+48.7 = 48.7
- -2 = 2
/3 = 1/3
*-4 = -1 (signum)
^ 3 = e^3

Equation Grapher

The grapher expects equations solved in terms of y or r, as a function of x or theta respectively. Note that you may plot several equations at once, and that you may move the position of the graph by dragging it.

The scale adjustement (at the bottom) is a magnification factor, with '1' being 1 pixel per unit. The larger the magnification, the bigger the picture.

sample equations:

y= -x^3 + 3x^2 + 7x - 7
y= x + 5 sin x
y=sqrt 256 - x^2
y=(sin x) + (sin 2x) / 2 + (sin 3x) / 3 + (sin 4x) / 4


r= 2 + sin 5 theta r= sin 3 theta
r= 7 sin theta/2