Basic Functions:

addition: x + y
subtraction: x - y
multiplication: x * y
division: x / y

Other Functions:

sine: sin(x)
cosine: cos(x)
tangent: tan(x)
arcsine: asin(x)
arccosine: acos(x)
arctangent: atan(x)
hyperbolic sine: sinh(x)
hyperbolic cosine: cosh(x)
hyperbolic tangent: tanh(x)
square root: sqrt(x)
absolute value: abs(x)
natural logarithm: log(x)
base 10 logarithm: log10(x)
e^x : exp(x)
For exponents such as x², use x**2 or x^2.

All functions must be expressed in terms of y (or z in 3D) For example, x**2 + y**2 = 1 is not an acceptable function, but it can be expressed as sqrt(1-x**2), which is acceptable.

To plot more than one function on the same graph, separate the functions with commas.

Note: all spaces are removed, capital letters are converted to lower case, and ^ is automatically replaced with **.