how can i change the axis of an ezplot of below symbolic equation?
it's variables are betab and lambda.
s=-cos(2*pi/lambda*(9-4*betab^2)^(1/2))*(4*(2*tanh(3*pi/lambda*(betab^2-1)^(1/2))/(9-4*betab^2)^(1/2)-tan(pi/lambda*(9-4*betab^2)^(1/2))/(betab^2-1)^(1/2))/(9-4*betab^2)-2*(-2*tan(pi/lambda*(9-4*betab^2)^(1/2))/(9-4*betab^2)^(1/2)-tanh(3*pi/lambda*(betab^2-1)^(1/2))/(betab^2-1)^(1/2))/(betab^2-1)^(1/2)/(9-4*betab^2)^(1/2))+4*(2*tanh(3*pi/lambda*(betab^2-1)^(1/2))/(9-4*betab^2)^(1/2)-tan(pi/lambda*(9-4*betab^2)^(1/2))/(betab^2-1)^(1/2))/(9-4*betab^2)+2*(-2*tan(pi/lambda*(9-4*betab^2)^(1/2))/(9-4*betab^2)^(1/2)-tanh(3*pi/lambda*(betab^2-1)^(1/2))/(betab^2-1)^(1/2))/(betab^2-1)^(1/2)/(9-4*betab^2)^(1/2)-2*(1/(9/4-betab^2)+1/(betab^2-1))*tan(pi/lambda*(9-4*betab^2)^(1/2))*tanh(3*pi/lambda*(betab^2-1)^(1/2))/(9-4*betab^2)^(1/2)*sin(2*pi/lambda*(9-4*betab^2)^(1/2))
it's x axis must be lambda but is betab.
