How to wrote theta as a matlab code

2017 10 19
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更新时间：2021 1 26
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Birdman
Birdman 2017-10-19

1 个投票

syms theta
2*sin(theta)
Then by substituting theta with any numeric variable, you can calculate 2*sin(theta)

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Courtney Jacks
Courtney Jacks 2018-2-20
When I input this in matlab it does not run.
Jan
Jan 2018-2-20
@Courtney: "It does not run" does not allow to help you. Please post, what happens instead - perhaps an error message because you do not have the Symbolic Toolbox?

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James Tursa
James Tursa 2017-10-19
编辑：James Tursa 2017-10-19

2 个投票

E.g.,
theta = pi/4;
result = 2*sin(theta); % <-- if theta is in radians
theta = 45;
result = 2*sind(theta); % <-- if theta is in degrees

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