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Integer division with rounding option

`C = idivide(A, B, opt)`

C = idivide(A, B)

C = idivide(A, B, 'fix')

C = idivide(A, B, 'round')

C = idivide(A, B, 'floor')

C = idivide(A, B, 'ceil')

`C = idivide(A, B, opt)`

is
the same as `A./B`

for integer classes except that
fractional quotients are rounded to integers using the optional rounding
mode specified by `opt`

. The default rounding mode
is `'fix'`

. Inputs `A`

and `B`

must
be real and must have the same dimensions unless one is a scalar.
The arguments `A`

and `B`

must belong
to the same integer class. Alternatively, one of the arguments can
be a scalar double, while the other can be any integer type except `int64`

or `uint64`

.
The result `C`

belongs to the integer class of the
input arguments.

`C = idivide(A, B)`

is the
same as `A./B`

except that fractional quotients are
rounded toward zero to the nearest integers.

`C = idivide(A, B, 'fix')`

is
the same as the syntax shown immediately above.

`C = idivide(A, B, 'round')`

is
the same as `A./B`

for integer classes. Fractional
quotients are rounded to the nearest integers.

`C = idivide(A, B, 'floor')`

is
the same as `A./B`

except that fractional quotients
are rounded toward negative infinity to the nearest integers.

`C = idivide(A, B, 'ceil')`

is
the same as `A./B`

except that the fractional quotients
are rounded toward infinity to the nearest integers.

a = int32([-2 2]); b = int32(3); idivide(a,b) % Returns [0 0] idivide(a,b,'floor') % Returns [-1 0] idivide(a,b,'ceil') % Returns [0 1] idivide(a,b,'round') % Returns [-1 1]

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