Arguments

X

a matrix of floats or integers.

y

a matrix of integers coded on one, two or four bytes.

Description

These functions convert and store data to one, two or four bytes integers. These data types are especially useful to store big objects such as images, long signals,...

y = int8(X)

return numbers in the range [-128, 127]

y = uint8(X)

return numbers in the range [0, 255]

y = int16(X)

return numbers in the range [-32768, 32767]

y = uint16(X)

return numbers in the range [0, 65535]

y = int32(X)

return numbers in the range [-2147483648, 2147483647]

y = uint32(X)

return numbers in the range [0, 4294967295]

y = int64(X)

return numbers in the range [-9223372036854775808,9223372036854775807]

y = uint64(X)

return numbers in the range [0, 18446744073709551616]

If X has numbers with a fractional part, Scilab rounds them to the nearest integer toward zero.

Examples

int8([1 -120 127 312])
uint8([1 -120 127 312])

x = int32(-200:100:400)
int8(x)

y = [-3.8, -3.5, -3.1, 3.1, 3.5, 3.8]
int8(y)

See also

• double — converts inttype integers or booleans into decimal encoding
• inttype — type integers used in integer data types
• iconvert — conversion to 1 to 8 byte integer representation