Excel 2010 SQL应用055 SQL中使用三角函数

阅读量：181 次

发布时间：2019-02-28

本文共 1547 字，大约阅读时间需要 5 分钟。

??????????????????

????

????????????????????????????????SQL?????????

????

?????????????????

??	????	???
1	115	60
2	40	60
3	65	64
4	25	56
5	65	71
6	50	83
7	45	50
8	115	50
9	75	84
10	65	40
11	25	73
12	90	36
13	60	38
14	90	72
15	20	58
16	45	42
17	70	63
18	55	38
19	20	62
20	80	79
21	50	85
22	105	34
23	45	38
24	110	57
25	75	85
26	85	31
27	40	55
28	95	44
29	65	74

SQL????

??????

?????

??????????????

?????????????

???????????????????????????????????????????????????[???? = \frac{????}{\cos(\frac{\text{???} \times 3.1416}{180})}]???(\cos) ??????

SQL?????SQL?????????????????????????SQL?????

SELECT ??, ????, ???,        ROUND(???? / COS(??? * 3.1416 / 180), 2) AS ???FROM [sheet1$]

COS ??????????

ROUND ?????????????????????

[sheet1$] ????? sheet1 ??????

?????

??? ????????????? (\pi/180)??

????????????????

??????

???SQL???????????????

??	????	??	??
1	`ATN(number)`	????????????	`4 * ATN(1)` ?? ??
2	`SIN(number)`	???????????	`SIN(30 * 3.1416 / 180)` ?? 0.5?
3	`COS(number)`	???????????	`COS(60 * 3.1416 / 180)` ?? 0.5?
4	`TAN(number)`	???????????	`TAN(45 * 3.1416 / 180)` ?? 1?

????

????

????? 115????? 60 ??

???????[???? = \frac{115}{\cos(60 \times 3.1416 / 180)} = \frac{115}{0.5} = 230]

SQL ?????[SELECT ??, ????, ???, ROUND(115 / COS(60 * 3.1416 / 180), 2) AS ???]??????230.00?

????

????? 65????? 64 ??

???????[???? = \frac{65}{\cos(64 \times 3.1416 / 180)} \approx \frac{65}{0.4384} \approx 148.31]

SQL ?????[SELECT ??, ????, ???, ROUND(65 / COS(64 * 3.1416 / 180), 2) AS ???]??????148.31?

??

?????????????????????????SQL ?????????????????????????????????

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??	????	???
1	115	60
2	40	60
3	65	64
4	25	56
5	65	71
6	50	83
7	45	50
8	115	50
9	75	84
10	65	40
11	25	73
12	90	36
13	60	38
14	90	72
15	20	58
16	45	42
17	70	63
18	55	38
19	20	62
20	80	79
21	50	85
22	105	34
23	45	38
24	110	57
25	75	85
26	85	31
27	40	55
28	95	44
29	65	74

??	????	???
1	115	60
2	40	60
3	65	64
4	25	56
5	65	71
6	50	83
7	45	50
8	115	50
9	75	84
10	65	40
11	25	73
12	90	36
13	60	38
14	90	72
15	20	58
16	45	42
17	70	63
18	55	38
19	20	62
20	80	79
21	50	85
22	105	34
23	45	38
24	110	57
25	75	85
26	85	31
27	40	55
28	95	44
29	65	74

??	????	???
1	115	60
2	40	60
3	65	64
4	25	56
5	65	71
6	50	83
7	45	50
8	115	50
9	75	84
10	65	40
11	25	73
12	90	36
13	60	38
14	90	72
15	20	58
16	45	42
17	70	63
18	55	38
19	20	62
20	80	79
21	50	85
22	105	34
23	45	38
24	110	57
25	75	85
26	85	31
27	40	55
28	95	44
29	65	74