document.write( "Question 1191625: How many different signals consisting of five symbols or less can be sent using the dot and dash of Morse code? \n" ); document.write( "

Algebra.Com's Answer #823407 by Alan3354(69443) $\"\"$ $\"About$

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How many different signals consisting of five symbols or less can be sent using the dot and dash of Morse code?
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\n" ); document.write( "Each position is 1 of 2.
\n" ); document.write( "---> 1 + 2^1 + 2^2 + 2^3 + 2^4 + 2^5 = 63
\n" ); document.write( "E is one dot.
\n" ); document.write( "T is one dash.
\n" ); document.write( "I didn't include an \"empty signal.\" 2^0 is 1. It's the code for and E or a T.
\n" ); document.write( "---
\n" ); document.write( "There are 26 Morse codes for A-Z, 10 for 0 to 9 that use 5 or fewer dots/dashes.
\n" ); document.write( "Some others, eg, the period and the comma, use 6.
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\n" ); document.write( "You never outgrow your need for useless facts.
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\n" ); document.write( "I'll list them. I'll use 1 for dash and 0 for dot.
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document.write( "1  0\r\n" );
document.write( "2  1\r\n" );
document.write( "3  10\r\n" );
document.write( "4  11\r\n" );
document.write( "5  100\r\n" );
document.write( "6  101\r\n" );
document.write( "7  110\r\n" );
document.write( "8  111\r\n" );
document.write( "9  1001\r\n" );
document.write( "10 1010\r\n" );
document.write( "11 1011\r\n" );
document.write( "12 1100\r\n" );
document.write( "13 1011\r\n" );
document.write( "14 1100\r\n" );
document.write( "15 1101\r\n" );
document.write( "16 1101\r\n" );
document.write( "17 1110\r\n" );
document.write( "18 1111\r\n" );
document.write( "19 10000\r\n" );
document.write( "20 10001\r\n" );
document.write( "BBL to finish.\r\n" );
document.write( "21 LSLS\r\n" );
document.write( "22 LSSS\r\n" );
document.write( "23 SLLL\r\n" );
document.write( "24 SLLS\r\n" );
document.write( "25 SLSL\r\n" );
document.write( "26 \r\n" );
document.write( "27 \r\n" );
document.write( "28 \r\n" );
document.write( "29 \r\n" );
document.write( "30 \r\n" );
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document.write( "61 \r\n" );
document.write( "62 \r\n" );
document.write( "63 \r\n" );
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