Function evalexpr::eval_number_with_context_mut

pub fn eval_number_with_context_mut<C: ContextWithMutableVariables>(
    string: &str, 
    context: &mut C
) -> EvalexprResult<FloatType>

Evaluate the given expression string into a float with the given mutable context. If the result of the expression is an integer, it is silently converted into a float.

See the crate doc for more examples and explanations of the expression format.