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What is the meaning of the sentence "Integera" in FORTRAN 77
There should be a space between integer and a, such as:
integer a
It means to define an integer and the variable name is a
Sentence in FORTRAN 77: Mn = n1-m1 + 1 if (MN) 200200150 what is the use of if?
IF(MN) 200,200,150
Equivalent to
If ( MN < 0 ) goto 200
If ( MN = 0 ) goto 200
If ( MN > 0 ) goto 150
This is a very old way of writing. It is not recommended to use now. As long as you can understand it
Does knowing mean knowing
To know is to know. To know is to know. To know is to know. To know is to know. To not know is not to know
The simplest common denominator of the fractions 1A + B, 2aa2 − B2, BB − A is ()
A. （a2-b2）（a+b）（a-b）B. （a2-b2）（a+b）C. （a2-b2）（b-a）D. a2-b2
The denominator of 1A + B is a + B, the denominator of 2aa2 − B2 is (a + b) (a-b) after decomposition, and the denominator of BB − a can be transformed into - (a-b), so the simplest common denominator is the denominator of 2aa2 − B2, that is, A2-B2
An electrical appliance with a rated voltage of 8 V is connected in series with a resistance of 5 Ω and connected to a power supply with a voltage of 10 v. the electrical appliance just works normally. Calculate the resistance value and rated power of the electrical appliance?
According to the total voltage of the series circuit is equal to the sum of the voltages at both ends of the series conductors, the voltage at both ends of the series resistor is: U2 = u-u1 = 10v-8v = 2V, the current of the series resistor is: I = u2r2 = 2v5, Ω = 0.4A, according to Ohm's law, the resistance of the consumer is R1 = u1i = 8v0.4a = 20 Ω, and the rated power of the consumer is P1 = u1i
The circumference of an isosceles triangle is 16 cm, and the height of its bottom is 4 cm
It's an isosceles triangle, not a right triangle. Does Pythagorean theorem not apply?
If the waist length of the triangle is x, the base is 16-2x
According to Pythagorean theorem: x ^ 2 = 4 ^ 2 + (8-x) ^ 2
We get x = 5
The waist length of the triangle is 5cm and the bottom length is 16-10 = 6cm
Supplement:
A right triangle is made up of waist, hypotenuse and half bottom
The formula of electric energy consumption by electrical appliances
W=UIt
The first floor is not completely right. For example, on the motor, it can only indicate the work consumed by the heating of electrical appliances
The two on the second floor are both power formulas. The consumed electric energy is w = Pt, and there is another time in it
How to solve a-178; - 5a-2 = 0
a²-5a-2=0
a²-5a+(5/2)²-(5/2)²-2=0
(a-5/2)²-25/4-2=0
(a-5/2)²=33/4
a-5/2=±√33/2
a1=(5+√33)/2 a2=(5-√33)/2
This is the way to match
When using the electric furnace, why is the electric furnace wire hot and red, but the wire connected with the electric furnace wire is not so hot?
When the electric furnace is in use, the electric furnace wire and wire are connected in series, I electric furnace wire = I wire, the power on time t is the same, ∵ q = i2rt, R electric furnace wire > R wire, ∵ heat generated by current: Q electric furnace wire > Q wire, so that the electric furnace wire is red, but the wires connected with the electric furnace wire are not very hot. Answer: because the resistance of the electric furnace wire is large, the heat generated is more
What's the number in line 97? What's the number in line 10
one
3 5 7
9 11 13 15 17
19 21 23 25 27 29 31
33 35 37 39 41 43 45 47 49
97=1+2+...+13+6
So it's on line 13, number six
1+2+.+10+9=64
The ninth in line 10 is 64
Please accept as a satisfactory answer
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