1f4c460f4f
Add GitHub Actions CI with automated build and test. Implement real terminal I/O with raw mode (enable_raw/disable_raw, proper INKEY$ polling via VMIN=0/VTIME=0, INPUT$ function). Add Sixel graphics engine with virtual framebuffer (SCREEN 1: 320x200, SCREEN 2: 640x200), Bresenham line drawing, midpoint circle, flood fill PAINT, DRAW mini-language parser, and Sixel encoder with RLE. Replace all graphics stubs with real implementations (PSET, LINE, CIRCLE, DRAW, PAINT, COLOR, SCREEN, POINT). Fix AND/OR/XOR operator precedence to be lower than relational operators. Add 13 classic test programs (39 total). Bump version to 0.5.0.
18 lines
485 B
QBasic
18 lines
485 B
QBasic
10 REM Statistics: mean, variance, std dev
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20 N% = 10
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30 DIM X(9)
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40 DATA 23,45,12,67,34,89,56,78,90,11
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50 FOR I = 0 TO 9 : READ X(I) : NEXT I
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60 REM Mean
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70 S = 0
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80 FOR I = 0 TO 9 : S = S + X(I) : NEXT I
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90 MEAN = S / N%
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100 PRINT USING "Mean: ###.##"; MEAN
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110 REM Variance
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120 V = 0
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130 FOR I = 0 TO 9 : V = V + (X(I) - MEAN) * (X(I) - MEAN) : NEXT I
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140 VR = V / N%
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150 PRINT USING "Variance: ####.##"; VR
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160 PRINT USING "Std Dev: ###.##"; SQR(VR)
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170 PRINT "Stats calc OK"
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