I want to do something individually with the BigNumbers that are returned here, but I am having trouble assigning them to variables.

truffle(develop)> reg.getProviderCurve(addr,spec)
[ BigNumber { s: 1, e: 0, c: [ 1 ] },
  BigNumber { s: 1, e: 0, c: [ 1 ] },
  BigNumber { s: 1, e: 0, c: [ 2 ] } ]
truffle(develop)> [n,m,p] = reg.getProviderCurve(addr,spec)
TypeError: reg.getProviderCurve is not a function

Depending on what you are trying to do, the default truffle syntax has bluebird included, and there you can replace

.then(...) with

.spread(function(bigNumber1, bigNumber2){

   someVar = bigNumber1.toString();
   someOtherVar = bigNumber2.toNumber();

if a contract has multiple return values. If you are just playing around with BigNumber objects, it might be that you need to instantiate n,m and p as BigNumber objects first.

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