g=@(a,b,c,d)pi*a^2*(4/3*a*~b+b*~c)+a*b*c*~d+d/12*(4*a^2*b^2-(a^2+b^2-c^2)^2)^.5;
g(4,0,0,0)
g(5.5,2.23,0,0)
g(3.5,4,5,0)
g(4,13,15,3)
Zz1AKGEsYixjLGQpcGkqYV4yKig0LzMqYSp+YitiKn5jKSthKmIqYyp+ZCtkLzEyKig0KmFeMipiXjItKGFeMitiXjItY14yKV4yKV4uNTsKCmcoNCwwLDAsMCkKCmcoNS41LDIuMjMsMCwwKQoKZygzLjUsNCw1LDApCgpnKDQsMTMsMTUsMyk=