Error using sin Not enough input arguments

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Jay Seno
Jay Seno 2020-9-30
回答： Star Strider 2020-9-30
Im new to mathlab and getting this error while typing in the command y4=(sin(t))*(sin*t)
im trying too create a subplot and have typed in y1 y2 y3 without a issue

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回答（2 个）

Cris LaPierre
Cris LaPierre 2020-9-30
sin is a function, which means you must give it an input. The error here is with the code sin*t at the end of your expression. Did you mean sin(t)? Take a look at the documentation page for sin for more.
Star Strider
Star Strider 2020-9-30
You have it partially correct.
Try this:
y4 = sin(t) .* sin(t);
If you want to multiply thge second one by ‘t’ do this:
y4 = sin(t) .* sin(t).*t;
This uses element-wise multiplication (the dot operator, so .* instead of *). I n the event that ‘t’ is a vector, it will produce a vector result. It will also work correctly if ‘t’ is a scalar.
.

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