dburkart / plot.js Goto Github PK

For example, with the following plot code:

f(x) = 2*x
g(x) = f(x)
g(4)
g(5)

We get the error Error: Variable 'x' has not been defined. However, if we only call g() once, we get 8.

This is unacceptable:

We need tick marks, and possibly a legend.

Instead of just saying that some variable or function is undefined, and what line it occured on, maybe say where on the line it happened.

This will probably require a pretty robust error throwing system.

Take for example the following code:

f() = (sin(3) + cos(4)) * 7
f()

This results in an unexpected answer of Error: TypeError: Cannot read property 'type' of undefined.

Take away the parens, and we get the answer: -4.434385337985416