The regex parser fails to recognize in expressions such as *1/(4x-1)*, that
4x is 4 times x.
I tried to call *M("1/(4x - 1)")* and I got the following transformation:
Integer (1 )/(Integer (4 )Symbol ('x' )-Integer (1 ))
Obviously, Integer(4) Symbol('x') is not valid, as an asterisk (*) is
missing to represent the multiplication.
A quick makeshift fix:
your_mathematica_expr = '((-2x+5)(4x-1)-4(-x^2+5x+1))/(4x-1)^2'
new_math_expr = re.sub("([0-9])\ *([a-zA-Z])", "\\1 * \\2",
your_mathematica_expr)
M(new_math_expr)
On Thursday, November 27, 2014 1:42:53 PM UTC+1, Lee Philip wrote:
>
> test code here, error encountered there .
>
> http://codepad.org/hZEmO4Po
>
> what I want to do here is just convert it to a Python acceptable
> expression ,is there an easy way ?
>
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