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extern TQuadrature QTMidpoint
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extern TQuadrature QTTrapez
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extern TQuadrature QTSimpson
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extern TQuadrature QTGauss3
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extern TQuadrature QTGauss7
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extern TQuadrature QTGaussRadau16
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extern QQuadrature QQMidpoint
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extern QQuadrature QQSimpson
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extern QQuadrature QQTrapez
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extern QQuadrature QQGauss4
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extern QQuadrature QQGauss9
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extern QQuadrature QQGauss16
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extern QQuadrature QQGauss36
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extern HQuadrature QHMidpoint
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extern HQuadrature QHGauss8
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extern HQuadrature QHGauss64
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extern HQuadrature QHSimpson