Nguyen Quy Anh
89 lines
1.7 KiB
C++
89 lines
1.7 KiB
C++
#pragma once
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#include <cmath>
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// $\tau_{\alpha}$
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const double TAU_ALPHA = 0.5;
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// $V^0_{\alpha \beta}$
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const double V0_AB = 2.1;
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// $\sigma$
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const double SIGMA = 0.3;
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// $U^0_{\alpha B}$
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const double U0_AB = 10.0;
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// $R$
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const double R = 0.2;
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// $c$
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const double C = 0.5;
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// $\varphi$
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const double PHI = 100.0 / 180.0 * M_PI;
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// $<v^0>$
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const double V0_MEAN = 1.34;
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// $\sqrt{\theta}$
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const double V0_STD_DEV = 0.26;
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// $\varDelta_{t}$
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const double DELTA_T = 2;
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// $dt$
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const double DT = 0.02;
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// # ##############################################################################################
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//
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// $\frac{-1}{2\sigma}$
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//
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const double NEG_ONE_DIV_TWO_SIGMA = -1.0 / (2 * SIGMA);
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//
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// $\frac{-V^0_{\alpha\beta}}{2\sigma}$
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//
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const double NEG_V0_AB_DIV_TWO_SIGMA = -V0_AB / (2 * SIGMA);
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// $cos(\varphi)$
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const double COS_PHI = cos(PHI);
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//
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// $\frac{-1}{R}$
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//
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const double NEG_R_INV = -1 / R;
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//
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// $\frac{-U^0_{\alpha B}}{R}$
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//
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const double NEG_U0_AB_DIV_R = -U0_AB / R;
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// $c * dt$
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const double C_TIMES_DT = C * DT;
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// ${(\varDelta_{t})}^2$
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const double DELTA_T_SQ = DELTA_T * DELTA_T;
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//
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// $\frac{1}{\tau_{\alpha}}$
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//
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const double TAU_ALPHA_INV = 1 / TAU_ALPHA;
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//
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// $\frac{dt}{\tau_{\alpha}}$
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//
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const double DT_TIMES_TAU_ALPHA_INV = DT * TAU_ALPHA_INV;
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// # ##############################################################################################
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const double COST_ADD = 1;
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const double COST_MULT = 1;
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const double COST_DIV = 1;
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// https://acl.inf.ethz.ch/teaching/fastcode/knowledgebase/#:~:text=How%20do%20exp(x)%2C%20sin(x)%2C%20etc.%20count%20in%20the%20flopcount%20of%20an%20algorithm%3F
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const double COST_EXP = 30;
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// -O3 maps each sqrt() call to an instruction
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const double COST_SQRT = 1;
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