Intial Commit

nodered/rootfs/data/node_modules/mathjs/examples/bignumbers.js

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+// BigNumbers
+
+// load math.js (using node.js)
+var math = require('../index');
+
+// configure the default type of numbers as BigNumbers
+math.config({
+  number: 'BigNumber',  // Default type of number:
+                        // 'number' (default), 'BigNumber', or 'Fraction'
+  precision: 20         // Number of significant digits for BigNumbers
+});
+
+console.log('round-off errors with numbers');
+print(math.add(0.1, 0.2));    // number, 0.30000000000000004
+print(math.divide(0.3, 0.2)); // number, 1.4999999999999998
+console.log();
+
+console.log('no round-off errors with BigNumbers');
+print(math.add(math.bignumber(0.1), math.bignumber(0.2)));     // BigNumber, 0.3
+print(math.divide(math.bignumber(0.3), math.bignumber(0.2)));  // BigNumber, 1.5
+console.log();
+
+console.log('create BigNumbers from strings when exceeding the range of a number');
+print(math.bignumber(1.2e+500));    // BigNumber, Infinity      WRONG
+print(math.bignumber('1.2e+500'));  // BigNumber, 1.2e+500
+console.log();
+
+// one can work conveniently with BigNumbers using the expression parser.
+// note though that BigNumbers are only supported in arithmetic functions
+console.log('use BigNumbers in the expression parser');
+print(math.eval('0.1 + 0.2'));  // BigNumber, 0.3
+print(math.eval('0.3 / 0.2'));  // BigNumber, 1.5
+console.log();
+
+
+/**
+ * Helper function to output a value in the console. Value will be formatted.
+ * @param {*} value
+ */
+function print (value) {
+  console.log(math.format(value));
+}