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| 1 | zeroCrossCounter(double input, double thresh){
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| 2 | static double xzc; | |
| 3 | static double xc; | |
| 4 | ||
| 5 | int ysgn = hsgn(input, thresh); | |
| 6 | int xzc = kzc(ysgn, xzc); | |
| 7 | int yzc = hzc(ysgn, xzc); | |
| 8 | int xc = kc(yzc, xc); | |
| 9 | return 0; | |
| 10 | } | |
| 11 | ||
| 12 | int hsgn(double input, double thresh){
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| 13 | int ret; | |
| 14 | if(input > math.abs(thresh)) | |
| 15 | ret = 1; | |
| 16 | else if(input < math.abs(thresh)) | |
| 17 | ret = -1; | |
| 18 | else | |
| 19 | ret = 0; | |
| 20 | ||
| 21 | return ret; | |
| 22 | } |
