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m = v^2*cos(2*a)/g-v*sin(a)/g*(v^2*sin(a)^2+2*g*h)^(1/2)+v^3*cos(a)^2/g/(v^2*sin(a)^2+2*g*h)^(1/2)*sin(a) solve(m,'a') µÃ£ºans = [ atan(1/(2*g*h+2*v^2)^(1/2)*v,1/(2*g*h+2*v^2)*2^(1/2)*((g*h+v^2)*(v^2+2*g*h))^(1/2))] [ atan(1/(2*g*h+2*v^2)^(1/2)*v,-1/(2*g*h+2*v^2)*2^(1/2)*((g*h+v^2)*(v^2+2*g*h))^(1/2))] [ atan(-1/(2*g*h+2*v^2)^(1/2)*v,1/(2*g*h+2*v^2)*2^(1/2)*((g*h+v^2)*(v^2+2*g*h))^(1/2))] [ atan(-1/(2*g*h+2*v^2)^(1/2)*v,-1/(2*g*h+2*v^2)*2^(1/2)*((g*h+v^2)*(v^2+2*g*h))^(1/2))] ÇëÎÊÕâ´ð°¸ÔõÑù±íʾ£¬µÃµ½µÄ½âÊÇ£¿£¿£¿£¿£¨±¾ÈË¶Ô atan(1/(2*g*h+2*v^2)^(1/2)*v,1/(2*g*h+2*v^2)*2^(1/2)ÖеĶººÅ²»½â£© ÓÐÄÄλ´ó¸çÖªµÀÇëËÙ»ØÌù£¡£¡£¡£¡£¡£¡£¡ [search]matlab ½â·½³Ì[/search] |
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