{
  "format": "abacus-notebook",
  "version": 1,
  "variables": {
    "result": 25,
    "alfa": 20
  },
  "functions": {
    "double": "alfa*2"
  },
  "cells": [
    {
      "step": 1,
      "code": "alfa=20",
      "result": 0,
      "error": null
    },
    {
      "step": 2,
      "code": "alfa+5",
      "result": 25,
      "error": null
    },
    {
      "step": 3,
      "code": "double:alfa*2",
      "result": 25,
      "error": null
    },
    {
      "step": 4,
      "code": "",
      "result": null,
      "error": null
    },
    {
      "step": 5,
      "code": "",
      "result": null,
      "error": null
    },
    {
      "step": 6,
      "code": "",
      "result": null,
      "error": null
    },
    {
      "step": 7,
      "code": "",
      "result": null,
      "error": null
    }
  ],
  "graph": [
    {
      "step": 1,
      "result": 0.0
    },
    {
      "step": 2,
      "result": 25.0
    },
    {
      "step": 3,
      "result": 25.0
    }
  ]
}