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1.4 Cac ham toan hoc thong thu­ong.

Cac ham toan hoc cua Matlab d­oc liet ke trong bang cac ham nh­ sau:

Cac ham Chuc nang abs(x) Cho biet gia tri tuyet doi cua x cos(x) Ham cosin cua x sin(x) Ham sin cua x tan(x) Ham tg cua x acos(x) Ham ng­oc cua cosin asin(x) Ham ng­oc cua sin atan(x) Ham ng­oc cua tan exp(x) ex log(x) Logarit tu nhien log10(x) Logarit co so 10 sqrt(x) Ham khai can bac hai real(x) Tra ve phan thuc cua so phuc imag(x) Tra ve phan ao cua so phuc gcd(x,y)so chung lon nhat cua hai so nguyen x va y lcm(x,y) Boi so chung nho nhat cua hai so nguyen x va y

Vi du: >> abs(-5)

ans =

5 >> cos(0) % chu y don vi dung cho ham cos la Radiun

ans =

1 >> sin(0)

ans =

0 >> tan(0)

ans =

0 >> acos(1)

ans =

0

>> exp(1)

ans =

2.7183 >> log(10)

ans =

2.3026 >> log10(100)

ans =

2 >> sqrt(25)

ans =

5 >> real(5-6*i)

ans =

5 >> imag(5+4*i)

ans =

4 >> gcd(15,20)

ans =

5 >> lcm(15,4)

ans =

60

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