Sinclair QL - Page 173

RANDOMISE
maths functions RANDOMISE allows the random number generator to be reseeded. If a parameter IS
specified the parameter is taken to be the new seed. If no parameter is specified then
the generator
is reseeded from internal information.
syntax: RANDOMISE [numeric_expressionl
example: i. RANDOMISE [set seed to internal data)
ii. RANDOMISE 3.2235 [set seed to 3.2235]
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RECOl will recolour individual pixels in the window attached to the specified or default
channel according to some preset pattern. Each parameter is assumed to specify, in
order, the colour in which each pixel is recoloured, i.e. the first parameter specifies the
colour with which
to recolour all black pixels, the second parameter blue pixels, etc.
The colour specification must be a solid colour, i.e. it must be in the range 0 to 7
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RECOL
windows
syntax:
example:
cO: ~ new colour for black
cl:= new colour for blue
c2:~ new colour for red
c3: = new colour for magenta
c4:= new colour for green
c5: = new colour for cyan
c6: ~ new colour for yellow
c7: = new colour for white
RECOl [channel ,I cO, cl, c2, c3, c4, c5, c6, c7
RECOl 2,3,4,5,6,7,1,0 !recolour blue to magenta, red to
green, magenta to cyan etc.1
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