Методичка по информатике(эксель)
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График функции |
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y |
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x |
При построении графика функции с тремя |
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условиями, например: |
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e x |
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Y 1 |
x , если x [0,2; 0,8] |
1 ln( x), если x 0,8 |
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в ячейку B2 необходимо ввести формулу |
=ЕСЛИ(A2<0,2;EXP(A2);ЕСЛИ(И(A2>=0,2;A2<=0,8);1+КОР ЕНЬ(A2);1+LN(A2))) и выполнить выше
перечисленные действия.
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При построении двух графиков функций в одной системе координат, например: Y = acos(x); Z = bsin22x при x [ 3,14; 3,26], x=0,4 необходимо выполнить следующие действия:
в ячейке B3 записать формулу вычисления значения функции Y;
=$D$1*COS(A3)
в ячейке С3 формулу для вычисления значения функции Z;
=$E$1*SIN(2*A3)
в ячейке D1 значение переменной a;
в ячейке E1 значение переменной b.
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Для автоматизации построения графиков можно |
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использовать макросы |
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7. ЗАДАНИЯ К ЛАБОРАТОРНОЙ РАБОТЕ № 4
Построить график функции, используя электронную таблицу Excel.
Вариант 1
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1.2 |
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y=sin(x) |
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y=x |
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0.4 |
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-3.2 |
-2.8 |
-2.4 |
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-1.6 |
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-0.8 |
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0.4 |
0.8 |
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1.6 |
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2.4 |
2.8 |
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-0.4 |
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2 |
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-0.8 |
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y=cos(x) |
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-1.2 |
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-1.6 |
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-2 |
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Вариант 2 |
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16 |
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14 |
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y = x2n |
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12 |
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y = 2 |
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y = |x| |
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4 |
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2 |
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-1 |
-0.8 |
-0.6 |
-0.4 |
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0.4 |
0.6 |
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1.2 |
1.4 |
1.6 |
Вариант 3
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1.5 |
y = 0 |
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1 |
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y = cos(x)+1 |
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0.5 |
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0 |
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-3.2 |
-2.7 -2.2 |
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-0.7 |
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1.0 |
1.3 |
1.8 |
2.3 |
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3.3 |
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-0.5 |
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y = sin(x) |
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-1 |
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-1.5 |
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Вариант 4 |
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2.5 |
y=2 |
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y=sin(x) |
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2 |
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1.5 |
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y=1/(x-1) |
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0.5 |
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0 |
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-3.1 |
-3.0 -2.4 |
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1.1 1.6 |
2.5 |
3.2 |
3.9 4.6 5.3 |
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-1 |
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-1.5 |
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Вариант 5 |
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25 |
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y=e-x |
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15 |
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y=0 |
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y=sin(x) |
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-3.1 |
-3.0 |
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1.1 |
1.8 |
2.5 |
3.2 |
3.9 |
4.6 |
5.3 |
6.0 |
6.7 |
7.4 |
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-5 |
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Вариант 6 |
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10 |
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y = cos(x) |
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y = xsin(x) |
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2 |
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-7.7 -7.0 -6.3 -5.5 -4.7 -3.9 -3.1 -2.4 -1.6 -0.8 0 |
0.8 |
1.6 |
2.4 3.1 |
3.5 |
4.0 |
4.3 5.1 5.7 6.2 6.7 |
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y = xsin(x) |
-4 |
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-6 |
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y = 1 |
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y = sin(x) |
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y = x |
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-Основной-Основной-Основной-Основной-Основной-ОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновной |
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-Основной |
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Вариант 7 |
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76
Вариант 8 Вариант 9
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y = 1/ x |
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y = x2 |
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y = cos(x) |
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-Основной-Основной-Основной-Основной-Основной-Основной-Основной-ОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновнойОсновной |
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-Основной |
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y = x3 -3x |
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y = x3+3x |
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y = 0 |
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-2.4 -2.1 -1.6 -1.5 |
-1.2 |
-0.9 |
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-0.3 |
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0.9 |
1.2 |
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Вариант 10 |
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77
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2.5 |
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y = x |
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y = ln(1+x) |
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1.5 |
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0.5 |
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-5.0 -4.8 -4.0 |
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-3.0 |
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-1.7 |
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1.0 |
1.3 |
1.8 |
2.3 |
2.9 |
3.5 4.0 |
4.5 |
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y = 2 sin(x) |
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-1.5 |
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-2 |
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-2.5 |
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Вариант 11 |
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1.5 |
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y = arctg(x) |
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y = x+1 |
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y = x2 |
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0.5 |
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-1.8 |
-1.5 |
-1.2 |
-1 |
-0.6 |
-0.3 |
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0.3 |
0.6 |
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1.2 |
1.5 |
1.8 |
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-0.5 |
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-1 |
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Вариант 12
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3 |
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y = ln(ex) |
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y =1/|x| |
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y =1 |
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-3.0 |
-2.5 -2.0 |
-1.5 |
-1.0 -0.5 |
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1.0 |
1.5 2.0 |
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3.0 |
3.5 |
4.0 |
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Вариант 13 |
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2 |
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y = sin(x) |
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y = lg(x) |
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-1.4 -1.2 |
-0.9 |
-0.6 |
-0.3 |
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0.3 |
0.6 |
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1.2 1.5 |
1.8 |
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2.20 |
2.4 |
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-1 |
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y = tg(x) |
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-3 |
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-4 |
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-5 |
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-6 |
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Вариант 14 |
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1.8 |
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1.5 |
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1.2 |
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0.9 |
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y = cos(x) |
0.6 |
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y = lg (x) |
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y = x2-1 |
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0.3 |
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-1.6 -1.3 |
-1.1 |
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-0.9 |
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-0.1 |
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0.3 |
0.5 |
0.7 |
0.9 |
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1.3 |
1.5 |
1.7 |
1.9 |
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Вариант 15 |
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1.6 |
y = (1+x)1/2 |
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1.4 |
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1.2 |
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y = 1/(1+x) |
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1.0 |
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y = |x|/(1+x2) |
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0.8 |
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0.6 |
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0.4 |
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0.2 |
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-1.4 -1.2 |
-1 -0.8 |
-0.6 |
-0.4 |
-0.2 |
0 |
0.2 0.4 0.6 |
0.8 |
1 |
1.2 1.4 1.6 |
Вариант 16 |
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2.0 |
y=(1+2x)1/2 |
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1.5 |
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y=sin(x) |
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y=(1+x)/(1+х2) |
1.0 |
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0.5 |
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-1.5 |
-1.3 -1.1 -0.9 |
-0.7 -0.5 |
-0.3 -0.1 0 |
0.3 0.5 0.7 |
1.0 |
1.1 |
1.3 1.5 1.7 |
1.9 |
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-0.5 |
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Вариант 17 |
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80