Adding internals for array functions

[elisno]

My previous pull request broke existing functionality, so I decided to restart my work and add internal functions for arrays.

If the function is an N-dimensional array, its Laguerre-coefficients are stored in an (N+1)-dimensional array. The FFT is performed along the first dimension of that coefficient array when calculating the Laguerre-series.

In the test file specific to array-valued functions (test/arrayweeks_test.jl), calls to the internal functions seem to require two attempts (the first one usually outputs arrays of zeros). I haven't bothered to work on that, but I'll create a separate issue for that soon.

[codecov-io]

Codecov Report

Merging #8 into master will decrease coverage by 24.32%. The diff coverage is 96.55%.

@@             Coverage Diff             @@
##           master       #8       +/-   ##
===========================================
- Coverage     100%   75.67%   -24.33%     
===========================================
  Files           5        5               
  Lines         115      185       +70     
===========================================
+ Hits          115      140       +25     
- Misses          0       45       +45

Impacted Files	Coverage Δ
src/weeks.jl	71.17% <96.55%> (-28.83%)	:arrow_down:
src/InverseLaplace.jl	33.33% <0%> (-66.67%)	:arrow_down:
src/pairtest.jl	75% <0%> (-25%)	:arrow_down:
src/fixed_talbot.jl	95.83% <0%> (-4.17%)	:arrow_down:

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[jlapeyre]

Thanks! I will look at the changes. The test coverage went down even thought you added tests. Any idea why ?

[elisno]

Not really. Does this have something to do with the missing base report? Could this have something to do with the style of the test file (let blocks)?

[jlapeyre]

Yeah, maybe the missing base report.

[elisno]

Others seem to have similar issues with coverage. A fix seems to be on the way.

[codecov-commenter]

Codecov Report

Merging #8 into master will decrease coverage by 24.32%. The diff coverage is 96.55%.

@@             Coverage Diff              @@
##            master       #8       +/-   ##
============================================
- Coverage   100.00%   75.67%   -24.33%     
============================================
  Files            5        5               
  Lines          115      185       +70     
============================================
+ Hits           115      140       +25     
- Misses           0       45       +45     

Impacted Files	Coverage Δ
src/weeks.jl	71.17% <96.55%> (-28.83%)	:arrow_down:
src/InverseLaplace.jl	33.33% <0.00%> (-66.67%)	:arrow_down:
src/pairtest.jl	75.00% <0.00%> (-25.00%)	:arrow_down:
src/fixed_talbot.jl	95.83% <0.00%> (-4.17%)	:arrow_down:

---

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Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 0f590a8...db1eb6b. Read the comment docs.