I’m trying to calculate the results of formulas that are stored in
For example, a file may contain the line: 1+2/3
I want to take that line & get the result of the formula, 1.66 (roughly)
The way to do this seems to be Kernel.eval. But I can’t get it to
work correctly. Here’s my irb session:
irb(main):001:0> a = “1+2/3”
irb(main):002:0> b = eval(a)
I would think that eval(a) should return a Float, not a Fixnum.
I thought maybe that eval wasn’t following the standard order of
operations, which could explain the return value of 1. So then I
irb(main):005:0> a = “2/3”
irb(main):006:0> b = eval(a)
So, it’s not an order of operations thing.
Maybe I shouldn’t be using eval. But I can’t find another option. Any