App to calculate the angular velocity in radians per second and angular acceleration in radians per seconds squared and angles of links b and c (i.e rocker and lever ) with horizontal, when the lengths of links a,b,c,d angular velocity and acceleration of crank is given. Provision to check if the angle is within the given limit for given values of lengths of a,b,c,d which must use same units. Two sets of values for the given set of values use the radio button to get the other set. Take care that you see the whole value exponents in answers.theta is the value of angle of link a subtended to the horizontal and beta for link b and gamma for link c, link d being horizontal