Question

matlab算积分比如积分函数是a*x+sin(b*x),a,b都是常数,积分上下界是c,d（常数）怎么用matlab求

Answer 1

syms a b c d

>>result=int('a*x+sin(b*x)','x','c','d')%从c积分到d

result =-1/2*(-a*d^2*b+2*cos(b*d)+a*c^2*b-2*cos(b*c))/b

>> int('a*x+sin(b*x)','x','d','c')

ans =1/2*(-a*d^2*b+2*cos(b*d)+a*c^2*b-2*cos(b*c))/