Added Erf and Landau functions to FormulaEvaluator

[Dr15Jones]

Added Erf and Landau functions which are needed for jet energy corrections.

[cmsbuild]

A new Pull Request was created by @Dr15Jones (Chris Jones) for CMSSW_8_1_X.

It involves the following packages:

CommonTools/Utils

@cmsbuild, @cvuosalo, @slava77, @davidlange6 can you please review it and eventually sign? Thanks.
@makortel this is something you requested to watch as well.
@slava77, @Degano, @smuzaffar you are the release manager for this.

cms-bot commands are list here #13028

[Dr15Jones]

please test

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/12979/console

[Dr15Jones]

This was requested from #14430

[cmsbuild]

+1
Tested at: 5c796ab
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12979/summary.html

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:
772b226
You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12979/git-log-recent-commits
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12979/git-merge-result

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12979/summary.html

[slava77]

@cmsbuild please test
to get a clean incremental test (without extraneous PRs merged during testing)

[cmsbuild]

The tests are being triggered in jenkins.
https://cmssdt.cern.ch/jenkins/job/ib-any-integration/12995/console

[cmsbuild]

+1
Tested at: 5c796ab
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12995/summary.html

[cmsbuild]

Comparison is ready
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-14494/12995/summary.html

[slava77]

+1

for #14494 5c796ab

• code change is in line with the description; new feature is added
• jenkins tests pass: unit test including testFormulaEvaluator.cc (testCommonToolsUtil) runs OK; comparisons with baseline show no differences

@Dr15Jones I suppose we will need a version in 80X as well.

[Dr15Jones]

As usual, an 8_0_X version would happen after this one proves to not cause a problem in the IB.

[Dr15Jones]

@slava77 #14522