time-to-botec/squiggle/node_modules/jstat/test/linearalgebra/multiply-test.js

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var vows = require('vows');
var assert = require('assert');
var suite = vows.describe('jStat');
require('../env.js');
suite.addBatch({
'linearalgebra': {
'topic': function() {
return jStat;
},
'test that multipling by a scalar works': function(jStat) {
var A = jStat([[1, 2, 3]]);
assert.deepEqual(A.multiply(5), jStat([[5, 10, 15]]));
},
'test that multiplying by a matrix works': function(jStat) {
var A = jStat([[1, 2], [3, 4]]);
var B = [[1, 0], [0, 1]];
assert.deepEqual(A.multiply(B), jStat([[1, 2], [3, 4]]));
},
'test that multiplying by a nonidentity matrix works': function(jStat) {
var A = jStat([[1, 2], [3, 4]]);
var B = [[1, 2], [3, 4]];
assert.deepEqual(A.multiply(B), jStat([[7, 10], [15, 22]]));
}
}
});
suite.export(module);