joelahoover / mathjs-simple-integral Goto Github PK

I tried:
Code:
var math = require('mathjs')
var math2 = math.create(math.all)
math2.import(require('mathjs-simple-integral'));

But this returned:
Error: Cannot import "factory": already exists

What can i do?

How do you import mathjs-simple-integral into a React Native project? I already imported mathjs into my React Native project and it works beautifully, and now I would like to import the mathjs-simple-integral extension too.

The way I imported mathjs is

import { derivative, evaluate, parse, format, unit, simplify, math, max, min, complex, add, multiply, equal, sort, sqrt, exp, log, sin, cos, tan, sec, csc, cot, asin, acos, atan, acot, sinh, cosh, tanh, coth, asinh, acosh, atanh, acoth } from 'mathjs';

and this works. This is how I usually import things into React Native.

I tried to import mathjs-simple-integral similarly by inserting,

import { integral } from 'mathjs-simple-integral';

or just

import integral from 'mathjs-simple-integral';

which by itself did not return any error, but when I tried to compute

const a = integral('x^2', 'x')

I get an error

(0,_mathjsSimpleIntegral.integral) is not a function. (In ‘(0,_mathjsSimpleIntegral.integral)(‘x^2’, ‘x’)’, ‘(0,_mathjsSimpleIntegral.integral)’ is undefined)

However, computing

const a = derivative(‘x^2', 'x')

works well (because derivative comes with mathjs, which I managed to import well).

I also tried inserting

math.import(require('mathjs-simple-integral'));

and

require('mathjs-simple-integral')

into my React Native project but that did not help either. The former gives me an error undefined is not an object (evaluating '_mathjs.math.import') and the latter gives me the error Can't find variable: integral

Because this is an extension to mathjs, all this makes me think that mathjs-simple-integral probably needs to be imported differently than usual libraries. Any help would be greatly appreciated!

Why not make this extension a part of mathjs(since integrals are really important/used nowadays)?

Hello!

I'm very new to mathjs, but this looks like an amazing library
I need to compute and use an integral for one of my projects, but it looks to me like there is a small bug with this lib:

Doing this:

math.integral('x^2', 'x').compile();

raises a arg._compile is not a function exception

But this:

math.parse(math.format(math.integral('x^2', 'x'))).compile();

works fine

I've tried tracking the problem down, and by comparing the json
representations of these two:

math.integral('x^2', 'x')
math.parse(math.format(math.integral('x^2', 'x')))

I can only find one difference:

// math.integral output
{"name":"x"}

// serialized then parsed output
{"mathjs":"SymbolNode","name":"x"}

I hope that was clear, and that I'm not missing something obvious (as I said, this is the first time I use both your lib and mathjs)

Cheers!