Do operation as per given string
Example: '3*5' then answer must be 15;
'3+5' then answer must be 8;
'35' then answer must be 35;
Multiply a column by a row
Basic arrays operations.
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Find the area of a rectangle if length of the diagonal is given.
Union of two set decreasing order
Find out value of sine given by degree.
Solve Linear equations
Add one raw in given matrix as shown in example
Flip the vector from right to left
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