Parse and evaluate expressions like these:
'1 + 2'
'51 - 78'
'42 * 9'
The only operators are +, -, *.
Both arguments will be integers between -50 and 50.
Return the 3n+1 sequence for n
Multiply a column by a row
Put two time series onto the same time basis
mathematics , probability problem
Sum the entries of each column of a matrix which satisfy a logical condition.
Convert double scalar to half-precision floating point (IEEE 754r)
Sum the elements in either diagonal of a square matrix
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