enabled 'np.power' -> exponent, and also enabled replacing simple dec…

[alexhagen]

…imals with their fractional representation

now

x = -0.5

becomes

$$x ={- \frac{1}{2}}$$

and

x = np.power(1, 2)

becomes

$$x = \left(1\right)^{2}$$

and

x = 1.

becomes

$$x = 1$$

[erwanp]

Hello, and thanks for the suggestions! I got three remarks

1. You'll need parenthesis around the

except (IndexError, ValueError):

for it to pass the tests.

2. The simplifications of power and 1. are great, let's include them!

3. However, I wouldn't simplify 0.5 as 1/2 by default. Sometimes you just want things to stay compact. Furthermore, if you have 1/2 in your Python/Fortran expression it will be converted to $$x ={- \frac{1}{2}}$$ already.

What do you think of that?

[alexhagen]

Great, I'll work on that tomorrow. It's your choice as far as the fractions go, so I'll defer to you there.

[codecov-io]

Codecov Report

Merging #7 into master will decrease coverage by 2.58%.
The diff coverage is 36.84%.

@@            Coverage Diff             @@
##           master       #7      +/-   ##
==========================================
- Coverage   75.88%   73.29%   -2.59%     
==========================================
  Files          13       13              
  Lines         539      573      +34     
==========================================
+ Hits          409      420      +11     
- Misses        130      153      +23

Impacted Files	Coverage Δ
pytexit/pytexit.py	83.63% <ø> (ø)	⬆️
pytexit/core/core.py	75.29% <36.84%> (-4.71%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d0d063f...81fa728. Read the comment docs.

[erwanp]

Great, merging it!