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Lines Matching defs:phi

23 /** Harmonic function of the form <code>f (t) = a cos (&omega; t + &phi;)</code>.
35     /** Phase &phi;. */
36     private final double phi;
41      * @param phi phase
43     public HarmonicFunction(double a, double omega, double phi) {
46         this.phi   = phi;
51         return a * FastMath.cos(omega * x + phi);
56         return new HarmonicFunction(a * omega, omega, phi + FastMath.PI / 2);
73     /** Get the phase &phi;.
74      * @return phase &phi;
77         return phi;