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56 lines
2.0 KiB
JavaScript
56 lines
2.0 KiB
JavaScript
// test sec
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var assert = require('assert'),
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math = require('../../../math.js'),
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approx = require('../../../tools/approx.js'),
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pi = math.pi,
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complex = math.complex,
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matrix = math.matrix,
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unit = math.unit,
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sec = math.sec;
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// TODO: replace all string comparisons with approx.equal comparisons with numbers
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// number
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approx.equal(1 / sec(0), 1);
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approx.equal(1 / sec(pi*1/4), 0.707106781186548);
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approx.equal(1 / sec(pi*1/8), 0.923879532511287);
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approx.equal(1 / sec(pi*2/4), 0);
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approx.equal(1 / sec(pi*3/4), -0.707106781186548);
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approx.equal(1 / sec(pi*4/4), -1);
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approx.equal(1 / sec(pi*5/4), -0.707106781186548);
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approx.equal(1 / sec(pi*6/4), 0);
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approx.equal(1 / sec(pi*7/4), 0.707106781186548);
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approx.equal(1 / sec(pi*8/4), 1);
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approx.equal(1 / sec(pi/4), math.sqrt(2)/2);
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approx.equal(math.pow(sec(pi/4), 2), 2);
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approx.equal(sec(0), 1);
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approx.equal(sec(pi), -1);
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approx.equal(sec(-pi), -1);
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approx.equal(math.pow(sec(-pi/4), 2), 2);
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approx.equal(sec(2*pi), 1);
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approx.equal(sec(-2*pi), 1);
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// complex
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assert.deepEqual(sec(complex('2+3i')).toString(), '-0.041675 + 0.090611i');
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assert.deepEqual(sec(complex('2-3i')).toString(), '-0.041675 - 0.090611i');
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assert.deepEqual(sec(complex('-2+3i')).toString(), '-0.041675 - 0.090611i');
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assert.deepEqual(sec(complex('-2-3i')).toString(), '-0.041675 + 0.090611i');
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assert.deepEqual(sec(complex('i')).toString(), '0.64805');
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assert.deepEqual(sec(complex('1')).toString(), '1.8508');
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assert.deepEqual(sec(complex('1+i')).toString(), '0.49834 + 0.59108i');
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// unit
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approx.equal(sec(unit('45deg')), 1.41421356237310);
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approx.equal(sec(unit('-45deg')), 1.41421356237310);
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assert.throws(function () {sec(unit('5 celsius'))});
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// string
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assert.throws(function () {sec('string')});
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// array, matrix, range
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var sec123 = [1.85081571768093, -2.40299796172238, -1.01010866590799];
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approx.deepEqual(sec([1,2,3]), sec123);
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approx.deepEqual(sec(math.range('1:3')), sec123);
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approx.deepEqual(sec(matrix([1,2,3])), matrix(sec123));
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