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19 lines
389 B
QBasic
19 lines
389 B
QBasic
9 years ago
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#lang br/demo/basic
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1 PRINT TAB(32);"3D PLOT"
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2 PRINT TAB(15);"CREATIVE COMPUTING MORRISTOWN, NEW JERSEY"
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3 PRINT:PRINT:PRINT
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5 DEF FNA(Z)=30*EXP(-Z*Z/100)
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100 PRINT
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110 FOR X=-30 TO 30 STEP 1.5
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120 L=0
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130 Y1=5*INT(SQR(900-X*X)/5)
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140 FOR Y=Y1 TO -Y1 STEP -5
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150 Z=INT(25+FNA(SQR(X*X+Y*Y))-.7*Y)
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160 IF Z<=L THEN 190
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170 L=Z
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180 PRINT TAB(Z);"*";
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190 NEXT Y
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200 PRINT
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210 NEXT X
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300 END
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