Arrays: Difference between revisions

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' One dimensional arrays

DIM A ' empty array

DIM B(3) ' empty array with 4 elements

DIM C(2 TO 4) ' empty array with elements 2,3 and 4

D = [1,2,3,4] ' assign array in one statement

E = ["one", "two", "three"] ' string array

F = [1, "two", [1,2,3]] ' arrays can contain mixed data types

B[0] = 1 ' use [] or () to assign value to

B(1) = 2 ' element or access elements

A << 2 ' append element to an array

print F ' print whole array -> Output: [1,two,[1,2,3]]

print F[0] ' print first element -> Output: 1

print F(1) ' print second element -> Output: two

' Multi dimensional arrays

DIM A(2,0) ' column array (vector) with 3 elements

DIM B(2,2) ' empty 2D array (matrix) with 3x3 elements

DIM C(2,2,2) ' empty 3D array with 3x3x3 elements

A[0,0] = 1

A[1,0] = 2

A[2,0] = 3

' Math with arrays

A = [1,2,3]

B = [4,5,6]

print A + B ' Output: [5,7,9]

print 3 * A ' Output: [3,6,9]

print A * B ' Output: [4,10,18]

C = [1;2;3] ' vector

D = [1,2,3;4,5,6;7,8,9] ' 2D matrix

print D * C ' matrix * vector -> Output [14;32;50]

print D * D ' matrix * matrix -> Output [30,36,42;66,81,96;102,126,150]

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