2 – amaliy mashg`ulot mavzu: С++ dasturlash tili va muhiti. Dastur strukturasi, elementlari. Alifbosi mashg’ulotining maqsadi

Arifmetik amalning yozilishi	С++ dasturlash tilida yozilishi	Arifmetik amalning yozilishi
С++ dasturlash tilida yozilishi
+	+	teng	==
-	-	teng emas	!=
	*	kichik	<
:	/	katta	>
bo`lishdan qoldiq	%	kichik yo`ki teng	<=
inkrement	++	Katta yo`ki teng	>=
dekrement	--

C++ dasturlash tilida matematik funksiylarni yozishda quyidagi jadvaldan foydalaniladi:

Matematik funksiya	С++ dasturlash tilida yozilishi	Matematik funksiya	С++ dasturlash tilida yozilishi
х^2	pow(x,2)	sinx	sin(x)
x	sqrt(x), pow(x,1/2.)	cosx	cos(x)
|x|	abs(x), fabs(x)	tg x	tan(x), sin(x)/cos(x)
e^x	exp(x)	ctg x	1/tan(x), cos(x)/sin(x)
	Pi	arcsin x	asin(x)
lnx	log(x)	arcos x	acos(x)
log2x	log(x)/log(2)	arctan x	atan(x)
lg(x)	loq10(x)	a^x	pow(a,x)
	pow(x,2/3.)

Dasturda matematik ifodaning qiymatini to`g`ri hisoblanishi uchun ifoda C++ dasturlash tilida yuqoridagi jadvaldan foydalanib yoziladi. Masalan:

Matematik ifoda	С++ dasturlash tilida yozilishi
	y=(pow(x,2)-4*log(a))*(pow(c,2)/a);
y=|sin x|	y= abs (sin(x));
y=tg^2x+7,5 ctg x^3	y=pow(tan(x),2)+7.5*1/tan(pow(x,3);
	y=(pow(log(x),2)+pow(1/tan(x),3))/ (log10(2)+exp(5*x));

O’zlashtirish uchun variant topshiriqlar:
C++ tilida ifodalarni yozing
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