* initial implementation of multidimensional std and var
* consolidated std function into var, cleaned up the interface for var, fixed bias correction
* added documentation of variable axis for std and var
* updated documentation for std and var
* changed the order of normalization and dimension for a three parameter input in the functions
* updated documentation for var and std
* add transform expressions for std and var with variable axis
* added test coverage for std and var with a variable axis
* update to documentation
* change n dim std to use apply function
* fixed tests, removed unnecessary code, updated docs
* fixed typo in docs
* update docs to remove a type
* changed location of apply function
* updated tests to use deepStrictEqual to pass linter
* adding test coverage for var.transform and std.transform
* add placeholder for apply function
* added apply function
* add test coverage for apply utility
* stylsitic name change in apply source code
* stylistic format change to test
* improved description of function parameters
* moved the apply function to the public matrix functions
* update location and reference of unit test
* fixed function reference paths in apply for location in function
* changed path to apply in apply.test
* make apply a typed function, update unit test
* added typing error test to coverage
* remove apply.test.js from the utils test function
* added transform function for apply
* add unit test for apply.transform.js
* Fixed unit base recognition and formatting for user-defined units
* Began writing tests for range
* Use fuzzy comparisons for detecting range endpoint
* Fixed unit base recognition and formatting for user-defined units
* Manually copied work from another branch
* Removed semicolons
* Replaced assert.equal with assert.strictEqual
* Added support for bignumber
* Replaced var with const
* Support pow() as an argument for derivative()
Add support for the pow() function as an argument for math.derivative().
Fixes#1259.
* Unit tests for derivatives of pow()
* Support for derivate of pow() function
* enable sum function to take an argument of dimension for a matrix fulfilling issue #1244
* added sum along a dimension to the unit test coverage for sum
* added information about sum along a dimension to the markdown
* fixed typo in error message
* made formatting chagnes for linter
* add sum to transformed functions
* add util function hasNumericValue
* hasNumericValue - add Number wrapper object. add more test cases.
* hasNumericValue - add test case to check if string with number, surrounded by whitespace is valid.
* chore(package): update standard to version 12.0.0
* update to new lint version with --fix
I believe this mainly adds whitespace to `{}`'s.
* Replace assert.equal with assert.strictEqual
This breaks a lot of tests which I will endevour to fix in the next
commits.
* Fix most errors due to assert.strictEquals
Some instances of `strictEquals` are replaced by `deepEquals`.
`toString` has been used to make some string comparisions explicit.
Tests will still fail untill #1236 and #1237 are fixed.
* Fix assertion erros due to -0
With node 10, assert.strictEqual no longer considers `0 === -0`.
I missed these first time round as I was using node 8.
* Put toString correct side of bracket
I was converting the constructor to a string rather
than the result of the computation. Oops.
* Fixed#1236: quantileSeq has inconsistant return
* Update package-lock
* Fixed#1237: norm sometimes returning a complex number instead of number
* Fix cli tests
* More changes for standardjs, and fixes in unit tests
Fix of bug fixes in `rationalize.js`, also changing `simplify.js` and `simplifyConstant.js` and more 2 bugs in `simplify.js` and `simplifyconstant.js` in order to be possible passing in `Travis` test.
**Bugs in `simplifyConstant.js` and `simplify.js`**
1. `simplifyConstant.js` - I've changed `new ConstantNode(stringNumber, 'number')` to `new ConstantNode(number)`
1. `simplify.js` - Due to problems with a number node with string type, I've added `!isNaN(node.value)))` in number type test condition
**Bugs in `rationalize.js`**
3. I've fixed negative power exponents and decimals coefficients troubles. The decimals coefficients problem has led to the need to add a new feature in `simplify.js ` and `simplifyConstant.js` (next topic)
**New feature in `simplify.js` and `simplifyConstant.js`**
4. New rule type (string), whose valid values are in `listCommStrings` new variable. The only string rule accepted so far is to turn off exact fraction conversion in `simplifyConstant.js`
