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56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
// test sec
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var assert = require('assert'),
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math = require('../../../src/index.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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// 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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var re = 0.0416749644111443,
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im = 0.0906111371962376;
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approx.deepEqual(sec(complex('2+3i')), complex(-re, im));
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approx.deepEqual(sec(complex('2-3i')), complex(-re, -im));
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approx.deepEqual(sec(complex('-2+3i')), complex(-re, -im));
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approx.deepEqual(sec(complex('-2-3i')), complex(-re, im));
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approx.deepEqual(sec(complex('i')), 0.648054273663885);
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approx.deepEqual(sec(complex('1')), 1.85081571768093);
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approx.deepEqual(sec(complex('1+i')), complex(0.498337030555187, 0.591083841721045));
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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('1:4')), sec123);
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approx.deepEqual(sec(matrix([1,2,3])), matrix(sec123));
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