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15 lines
798 B
JavaScript
15 lines
798 B
JavaScript
var assert = require('assert');
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var math = require('../../../index.js');
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// test diag
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assert.deepEqual(math.diag([1,2,3]).valueOf(), [[1,0,0],[0,2,0],[0,0,3]]);
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assert.deepEqual(math.diag([1,2,3], 1).valueOf(), [[0,1,0,0],[0,0,2,0],[0,0,0,3]]);
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assert.deepEqual(math.diag([1,2,3], -1).valueOf(), [[0,0,0],[1,0,0],[0,2,0],[0,0,3]]);
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assert.deepEqual(math.diag([[1,2,3],[4,5,6]]).valueOf(), [1,5]);
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assert.deepEqual(math.diag([[1,2,3],[4,5,6]],1).valueOf(), [2,6]);
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assert.deepEqual(math.diag([[1,2,3],[4,5,6]],-1).valueOf(), [4]);
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assert.deepEqual(math.diag([[1,2,3],[4,5,6]],-2).valueOf(), []);
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assert.deepEqual(math.diag(math.range(1,4)).valueOf(), [[1,0,0],[0,2,0],[0,0,3]]);
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assert.throws(function () {math.diag([[[1],[2]],[[3],[4]]])});
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// TODO: test diag for all types of input (also scalar)
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