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  BCC-16 (in Chinese) 計算機概論十六講 Matlab -- Variables
  
  t = pi/4, exp(i*t), cos(t) + sin(t)*i 這樣子 Matlab 會連續做三件事：先把 pi/4 指派給 t 然後計算 exp(i*t) 然後計算 ...
  
  2025-11-16
  
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  Cosine function - MATLAB - MathWorks
  
  This functionality does not run in MATLAB. ... sin(PI), cos(1), tan(5 + I), csc(PI/2), sec(PI/11), cot(PI/8) ... sin(x + 10*PI), cos(3 - PI), tan(x + PI), cot(2 - 10^100*PI).
  
  2025-11-13
  
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cos(pi/2) or sin(-pi) problem - Newsreader - MATLAB Central ...

日期：2025-11-17

2009年1月17日 - File exchange, MATLAB Answers, newsgroup access, Links, and Blogs for the ... matlab returns " cos(pi/2) = 6.1232e-017" and also " sin(-pi) ......

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Sine of argument in radians - MATLAB sin - MathWorks - MATLAB and Simulink for Technical Computing

日期：2025-11-20

Examples expand all Plot Sine Function Plot the sine function over the domain . x = -pi:0.01:pi; plot(x,sin(x)), grid on Sine of Vector of Complex Angles Calculate the sine of the complex angles in vector x. x = [-i pi+i*pi/2 -1+i*4]; y = sin(x) y = 0.000...

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Ratio of circle's circumference to its diameter - MATLAB pi

日期：2025-11-17

This MATLAB function returns the floating-point number nearest the value of π. ... Description pi returns the floating-point number nearest the value of π. The expressions 4*atan(1) and imag(log(-1)) provide the same value....

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sin(pi) does not equal zero - Newsreader - MATLAB Central - MathWorks

日期：2025-11-19

11 Dec 1998 ... I'm using MATLAB 5.1 for Windows, I found that sin(pi) doesn't equal zero. Is it a bug? Is there any methods to correct it? sin(pi) ans = 1.2246e- ......

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Sine of argument in degrees - MATLAB sind - MathWorks

日期：2025-11-18

This MATLAB function returns the sine of the elements in X, which are expressed in degrees. ... Sine of 180 degrees compared to sine of π radians. sind(180)...

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Trigonometric function errors at pi or pi/2 such as sin(pi) or cos(pi/2 ...

日期：2025-11-13

20 Sep 2014 ... The constant pi in matlab is a floating-point approximation of 'pi'. ... Note that sin( pi) returns '1.22464679914735e-16' and it is true somehow....

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MatLab returning different trigonometric answers than calculator ...

日期：2025-11-14

I've been practising with the sine function and this is a lot closer to my calculator results: Matlab: sin(90) = 0.8940; Matlab: sin(pi/2) = 1. matlab ......

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Introduction to MATLAB®

日期：2025-11-17

This enables you to use MATLAB as a calculator. Here are some very simple examples: 1+1 sin(pi) ans = 2 ans = 1.2246e-016. MATLAB has recognized sin as ......

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