How do you integrate a constant?

Question

Manil Athapattu 2017-6-29

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346692-how-do-you-integrate-a-constant

编辑： Torsten 2022-11-21

theta and miu are constants

theta = 0.01305
miu = 0.0546
const = @(x) tan(theta + miu)
r = integral(constant,0,1)

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Jan 2017-6-29

The integral of a constant function is the size of the rectangle between the curve and the X axis: const * (1 - 0).

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Answer 1

Joshua 2017-6-29

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/346692-how-do-you-integrate-a-constant#answer_272292

编辑：Torsten 2022-11-21

在 MATLAB Online 中打开

theta = 0.01305
theta = 0.0131
miu = 0.0546
miu = 0.0546
const = @(x) tan(theta + miu)+0*x
const = function_handle with value:
    @(x)tan(theta+miu)+0*x
r = integral(const,0,1)
r = 0.0678

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Yianni Koumarnetos 2022-11-21

I am doing this and it is telling me that the integral is an error.

Torsten 2022-11-21

编辑：Torsten 2022-11-21

在 MATLAB Online 中打开

Don't forget the +0*x when integrating your constant function.

Or use

theta = 0.01305
theta = 0.0131
miu = 0.0546
miu = 0.0546
const = @(x) tan(theta + miu)
const = function_handle with value:
    @(x)tan(theta+miu)
r = integral(const,0,1,'ArrayValued',true)
r = 0.0678