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advice on how to type this formula

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Aster
Aster 2023-10-28
移动：Dyuman Joshi 2023-12-16
Hi, could I get some guidence on how to type this out, wouldn't it be: x1(t) = 1/2-1/pi*sin(4*pi/t)
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Dyuman Joshi
Dyuman Joshi 2023-11-1
移动：Dyuman Joshi 2023-12-16
You are, of course, right Walter. However, I am (still) skeptical if that is what exactly OP wants.
We can infer this, but as OP has not specified any information about that, thus I thought of providing this as an alternative.
If OP does not provide any more information, I will move my answer to a comment.
Walter Roberson
Walter Roberson 2023-11-1
移动：Dyuman Joshi 2023-12-16
Your answer is probably what they were looking for ;-)

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回答（1 个）

Walter Roberson
Walter Roberson 2023-10-28
syms t
x_1(t) = 1/2-1/pi*sin(4*pi*t)
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Walter Roberson
Walter Roberson 2023-10-28
Ran in:
Well, let us try it.
Try #1:
x_1(t) = 1/2-1/pi*sin(4*pi*t)
Unrecognized function or variable 't'.
That fails.
Walter Roberson
Walter Roberson 2023-10-28
Ran in:
Try #2:
t = 0:.1:1; %some specific numeric t values
x_1(t) = 1/2-1/pi*sin(4*pi*t)
Array indices must be positive integers or logical values.
That fails as well.
Looks like, Yes, you do need syms t in order to write that formula.

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