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DefFuncRtoR2
Convert a "f(t), g(t)" string to a function acceptable for Curve
(This page applies only to the 1.x branch of SVGFig.)
funcRtoR2
Converts a "f(t), g(t)" string to a function acceptable for Curve. If you pass a string to Curve, funcRtoR2 will be used to convert it to a function.
Arguments
funcRtoR2(expr, var, globals, locals)
| expr | required | string in the form "f(t), g(t)" |
| var | default="t" | name of the independent variable |
| globals | default=None | dict of global variables used in the expression; you may want to use Python's builtin globals() |
| locals | default=None | dict of local variables |
All symbols from Python's math library are in scope, so you can say things like "cos(t), sin(t)".
Example use of globals.
>>> funcRtoR2("c*t, c*t**2", globals={"c": 12})This does the same thing.
>>> c = 12
>>> funcRtoR2("c*t, c*t**2", globals=globals())
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