30 lines
1.1 KiB
V
30 lines
1.1 KiB
V
module math
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fn test_erf() {
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assert is_nan(erf(nan()))
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assert tolerance(erf(-1.0), -0.8427007888650501, 1e-8)
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assert tolerance(erf(0.0), 0.0, 1e-11)
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assert tolerance(erf(1e-15), 0.0000000000000011283791670955126615773132947717431253912942469337536,
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1e-11)
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assert tolerance(erf(0.1), 0.11246291601917208, 1e-11)
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assert tolerance(erf(0.3), 0.32862677677789676, 1e-7)
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assert tolerance(erf(0.5), 0.5204998778130465376827466538919645287364515757579637,
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1e-9)
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assert tolerance(erf(1.0), 0.8427007888650501, 1e-8)
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assert tolerance(erf(1.5), 0.966105146259005, 1e-9)
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assert tolerance(erf(6.0), 0.99999999999999997848026328750108688340664960081261537,
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1e-12)
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assert tolerance(erf(5.0), 0.99999999999846254020557196514981165651461662110988195,
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1e-12)
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assert tolerance(erf(4.0), 0.999999984582742, 1e-12)
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assert tolerance(erf(inf(1)), 1.0, 1e-12)
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assert tolerance(erf(inf(-1)), -1.0, 1e-12)
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}
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fn test_erfc() {
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assert tolerance(erfc(-1.0), 1.84270078886505, 1e-8)
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assert tolerance(erfc(0.0), 1.0, 1e-11)
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assert tolerance(erfc(0.1), 0.8875370839808279, 1e-11)
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assert tolerance(erfc(0.2), 0.7772974103342554, 1e-9)
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}
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