time-to-botec/squiggle/node_modules/jstat/test/linearalgebra/angle-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;
},
'angle works for a vector': function(jStat) {
var piOverFour = 0.7853981633974484;
var tol = 0.00000001;
var A = jStat([[0, 1]]);
var B = [[2, 2]];
assert.epsilon(tol, A.angle(B), piOverFour);
}
}
});
suite.export(module);