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8Â¥: Originally posted by ¶À¹ÂÉñÓî at 2021-07-06 17:42:15
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clear;
a=0.709133065;b=0.08555;
syms x y positive
eqns=;
=vpasolve(eqns,,)...

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3Â¥: Originally posted by ¶À¹ÂÉñÓî at 2021-07-05 19:49:57
Õâ¸ö¾¡Á¿²»Òª×öÉìÊÖµ³£¬Çó½â·ûºÅ·½³Ì×飬¿´¿´solveº¯ÊýÓ÷¨

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syms x y;
>>[x ,y]=solve(' 0.709133=[1+(0.0172*x)^2]^(-y/2)','0.08555=y*arctan(0.0172*x)');
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syms a b y x
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sol=solve(b==y*atan(0.0172*x),y)  %´ýÇó½âµÄ±äÁ¿ÊÇy
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