Input:
oval(2,1)+abs(oval(2,1))
Write:
`oval(2,1)+abs(oval(2,1))`
Output:
$$oval(2,1)+abs(oval(2,1))== -1+abs(-1+0.25\ {x}^{2}+{y}^{2})+0.25\ {x}^{2}+{y}^{2}$$
Home | list | about | wiki | forum | contact | donate | index | ? | 中文