Python Pattern Programs - Printing Stars in Hollow Equilateral Triangle Shape | Pyramid Pattern

In this Python Pattern Printing programs video tutorial you will learn to print stars in hollow right angle triangle shape in detail.
To print stars in hollow equilateral triangle shape in python you have to use two for loops. the first loop is responsible for rows and the second for loop is responsible for column.next we need to use if else conditional statements. To write the conditions we used logical or operator.
If you are using python 2 then in the above program you have to use print as statement and you cant use end in python 2, so
print("*",end="")
instead of this you have to use
print "*",
Thanks to Winter Arctic who gave the idea of using sum of row and column value.
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[@cq7499]

Your detailed exposition certainly helped me a lot! Thank u

[@DarkLord-vk5bt]

Respect from Algeria to you ..❤❤

[@fareedsk6955]

Explaining all simple steps in each and every video....take a bow for your patience

[@AmulsAcademy]

Thank you :)

[@vaishnavideshmukh3133]

Wow mam!!! It's crystal clear mam !!!!great great very nicely explained 🙏Thank you so much ♥️

[@samanthshivakalimath4970]

What a lucid explanation, thank you so much, madam. It was easily understood, especially for students from Non-IT branches like me.

[@AmulsAcademy]

It's my pleasure : )

[@gauravrajguru393]

thank you very much you made programming easy

[@juanandresblancoantezana7726]

thank you! your explanation was phenomenal

[@AmulsAcademy]

Glad it was helpful! :)

[@akshatasurana1439]

Thanks a lot! you are a saviour. God bless!

[@AmulsAcademy]

You're welcome! :)

[@SJ-ic4yr]

Your explanations are very clear. Thanks

[@AmulsAcademy]

Thank you :)

[@AmanKumar-sm2gi]

Wow! explained things better than my CS teacher..

[@AmulsAcademy]

Thank you:)

[@morganmatthias5684]

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[@kodajairo8193]

@Morgan Matthias Definitely, been using instaflixxer for months myself :)

[@shubhamsinha373]

I love the way how u explain the detail. Love u

[@AmulsAcademy]

Thank you :)

[@splendhacker1098]

Really love your videos about programming

[@AmulsAcademy]

Thank you :)

[@prasanthpaul1354]

super explanation 👏👏👏totally understandable

[@droopy2145]

Wow what a amazing explanation..

[@shalinirakesh3455]

Very well explained..thanks

[@varshuk1934]

Wonderful explanation👏

[@techmediaintelugu]

Yes naming variables are good to see..they are very useful to understand easily..I preferred them mostly to students

[@AmulsAcademy]

Yes, true :)

[@shalupatidar2639]

mind blowing 👏👏
thank you so much

[@alee_matos]

Thank you so much for your explanation! Your logic really helped with a javascript exercise.

[@AmulsAcademy]

Glad it helped! :)

[@Musicalfly-xl2to]

Super explanation thank you 🙂

[@mahtvabhushan5793]

WOW!!! You deserve 10MILLION Subscribers!

[@AmulsAcademy]

❤️ Thank you 😊😊

[@enchanting-moist-brownie]

It is so great ! Thanks.

[@savitapallad9170]

excellent job! you explained very well.

[@AmulsAcademy]

Glad it was helpful! :)

[@phanirebba7065]

awesome explanation. really liked your explanation... please keep up the good work

[@AmulsAcademy]

Thank you :)

[@shashankshekhar1208]

awesome explained the logic,. really
loved this

[@AmulsAcademy]

Glad to hear that! :)

[@mampisarkar1]

very good video, u explanation is very simply and logical

[@AmulsAcademy]

Glad it was helpful! :)

[@Music.Air99]

your explanation is great madam, thank you so much

[@AmulsAcademy]

You are most welcome :)

[@kaustubhzade9429]

You Are Great

[@NikankshaJain]

wow simply and really well explained

[@AmulsAcademy]

Thanks a lot 😊

[@tarekghosn3648]

thanks a lot man

[@tecolote8566]

SUPER NICE!!

[@AmulsAcademy]

Thank you :)

[@syedibramsha4499]

Thank u lot❤

[@ranjith7775]

very good job .. nice explanation

[@AmulsAcademy]

Thank you:)

[@music_lover_infinity]

n=int(input("enter a no."))
for i in range(1,n+1):
for j in range(1,n*2):
if i+j==n+1 or j-i==n-1 or (i==n and j%2!=0):
print("*",end="")
else:
print(" ",end="")
print()
by adding one more or operator we can make it short.

[@ManpreetKaur-dl4of]

thanks alot god bless you

[@AmulsAcademy]

Thank you :)

[@deideimanza5454]

THANKS A LOT!

[@AmulsAcademy]

Welcome :)

[@KK7155.]

Very nice logic and very very nice explanation👌👌👌

[@AmulsAcademy]

Thank you so much 😀

[@KK7155.]

@@AmulsAcademy I was thinking that while doing meditation instead of listening any another music i will listen you voice😄😄

[@aliamere7511]

thank you very very very mutch🌸🌸💜💜

[@AmulsAcademy]

Welcome:)

[@venkatkrishnan876]

I am your fan

[@AmulsAcademy]

Thank you ❤️

[@crackexameasily786]

Good explanation

[@AmulsAcademy]

Thank you :)

[@NoobNexus_Gaming]

U r too good

[@a11k60]

انت مبدعه. ممتاز

[@nikhilsharma7741]

you are legend i love you

[@AmulsAcademy]

Thank you :)

[@nikhilsharma7741]

we are trying this pattern from last 6 days but nothing happens but you are love you

[@AmulsAcademy]

Thank you :)

[@divyarvikranth6224]

Can u give code for the pattern similar to above. But the figure should turn towards it's right. The tip of this triangle should come towards right.

[@techmediaintelugu]

Thank you

[@AmulsAcademy]

You're welcome :)

[@manikandand2541]

wow what a logic

[@sagilijayasree7740]

I want binomial coefficient in the form of equilateral triangle

[@naveenhagaragi8460]

Why to write elif condition, we can simply replace 'row==n' in 1st pgm with '(row==n and col%2!=0)' for 2nd pgm
n=int(input("Enter number of rows: "))
for row in range(1,n+1):
for col in range(1,2*n):
if (row+col==n+1) or (col-row==n-1) or (row==n and col%2!=0):
print("*",end="")
else:
print(" ",end="")
print()

[@abhishekanand6425]

mam ye jo aapne general program likha hai maan lijiye agar isme col ki range (1,8) na hokr (1,7) hoti aur n ki value 4 hoti to kaise general range likhte col ke liye?

[@salujamurali3514]

Superb explanation can u help me in other code mam....

[@AmulsAcademy]

I will try :)

[@smarttechnology4060]

How to create this type thought in mind. Please tell mam.

[@esakkisankar30]

I have only one doubt.... How do you number for column & rows as 0,1,2,... Or 1,2,3,...

[@allinvrk1273]

How to print * replace with numbers
Please explained

[@sandeepkumartiwari8436]

why you started index value of row and coloumn as 1 instead of 0.

[@abhishekanand6425]

mam in this program if i select range for rows=(5) and col=(8) soo it shows error but when i choose range row=(1,5) and col=(1,8) then pattern is correct why please explain

[@AmulsAcademy]

That program is written for row 1 to 5 and col 1 to 8.
we wrote if condition based on that .
And range(5) is different from range(1,5).
range(5) = 0, 1, 2, 3, 4
range(1,5) = 1, 2, 3, 4
To make it work for rows(5), you need to change the conditions also.
:)

[@trickstar5732]

what to manipulate it for variable pattern range?

[@AmulsAcademy]

num = int(input("eneter the number of rows:"))
for row in range(num):
for col in range((2*num)-1):
if row==(num-1) or (row+col==(num-1)) or (col-row==(num-1)) :
print("*",end="")
else:
print(end=" ")
print()
:)

[@sowmyapola1363]

Mam, in second program even we can write as col%2!=0 instead of taking another variable.

[@AmulsAcademy]

You can try :)

[@meenuturan6185]

I am getting error in elif row==n and column!=k
Can you please guide.

[@PS-fc3hr]

👍

[@Ramakrishna-et6gt]

n=int(input("enter number of rows:"))
for row in range(1,n+1):
for col in range(1,2*n):
if row==n or row+col==n+1 or col-row==n-1:
print("*",end="")
else:
print(end=" ")
print()

[@Ramakrishna-et6gt]

nter number of rows:5
* * * * * * * *********

[@Ramakrishna-et6gt]

there is no any mistake but the output is printing in horizontal way

[@AmulsAcademy]

In the Last line print() should be inside the first for loop.

[@vrakesh5288]

Madam how to do print Hollow number traingle

[@NoobNexus_Gaming]

Explanation

[@fakehakhan1146]

what if we want to give a constraint that n>2?

[@AmulsAcademy]

Try this:
n = int(input("rows:"))
col=2*n-1
mid=col//2
for i in range(n):
for j in range(col):
if i+j==mid or j-i==mid or i==n-1:
print("*",end="")
else:
print(" ",end="")
print()

[@michaelshevelin2234]

hi! is it critical which "for" loop is to be the first one? a column loop or sting loop?

[@zainabbohra2915]

it is for row mate

[@michaelshevelin2234]

@@zainabbohra2915Yeah, cheers dude:) My question is old and dumb. Ironically, last week I got a job in signal processing & machine learning. This is a reminder(to me at least) to be patient and helpful to beginners.

[@zainabbohra2915]

@@michaelshevelin2234 congrats 😎

[@sagnik0397]

*
* *
* *
* *
* *
* *
*
Ma'am i want to print this pattern plz help.
Same as the triangle you explained but inverted. Plz help

[@kanchidoshi6907]

How do you come up with the logic of row+col and col-row? I was thinking to calculate mid = n/2 and then display the * but it got complicated.

[@naseemhamze11]

how i print a string inside a triangle(The same as your triangle)
please help me

[@AmulsAcademy]

Give me the pattern please :)

[@Dawoodbashir78]

i'm not able to get my desired output.can you please fix it out .

[@Dawoodbashir78]

code is here:
for row in range (0,3):
for col in range (0,6):
if row == 4 or row+col ==5 or col-row==3:
print("*",end="")
else:
print(end=" ")

[@battulasatish2589]

I love you madammm 😁

[@awais_ansarii]

❣️❣️❣️

[@deeptigupta8291]

I am not getting correct output dear, this is my code:
n=int (input("enter the number of row :"))
for row in range (1,n+1):
for col in range (1,2*n):
if (row==n or row+col==n+1 or col-row==n-1):
print("*",end="")
else:
print(end="")
print()

[@AmulsAcademy]

In the else print you need to print space :)
n=int(input("enter the number of row :"))
for row in range (1,n+1):
for col in range (1,2*n):
if (row==n or row+col==n+1 or col-row==n-1):
print("*",end="")
else:
print(end=" ")
print()
:)

[@SAITAMA-sm2du]

Why my CS teacher doesn't explain Like This

[@mibrahim2001]

how can we print inverted hollow pyramid with same logic? anyone?

[@educationforall6290]

Hello I want a code to print heart shape

[@AmulsAcademy]

for row in range(5):
for col in range(7):
if (row==0 and col%3!=0) or (row==1 and col%3==0) or row-col==1 or row+col==7:
print("*",end="")
else:
print(end=" ")
print()

[@kashmirikitchenfood8218]

even after writing end i am not getting output in horizontal

[@AmulsAcademy]

Give me the program i will check :)

[@rajeshwariyadav24]

In row 4 two extra * us comming

[@AmulsAcademy]

give me the program please :)

[@yesdone4993]

*
* *
* *
*******
> This is th output I am getting with this code above

[@aniruddhadeshmukh3571]

It's not working for left start triangle shape

[@surendraavvaru4041]

In elif condition c%2!=0 if we write like dis we get output

[@surendraavvaru4041]

We don't need to take k variable

[@sushmapatelia5545]

Hello I have to clear 5 code test questions. .I need your help...will u help me out. As I have test tomorrow

[@sushmapatelia5545]

All 5 questions are of python programming

[@afreenasgar7012]

Are u talking about whitehatjr??

[@rahulsharma-rg9fx]

mam this code does not work in python 3.7.4 what do i do

[@AmulsAcademy]

It should work in python 3.7.
getting any error?

[@gopikrishnaguntupalli1889]

it's working !!

[@samarthdwivedi3358]

i am getting syntax error at else:

[@AmulsAcademy]

Give me the program i will check :)

[@trickstar5732]

#how

[@5g3yashwanth71]

Angel

[@offshoring8197]

You are soo cuute i love u ❤️❣️

[@AmulsAcademy]

Thank you :)

[@ropiljain3526]

1,1,4,8,9,27,16,64 ye series list or for loop se kese solve hoge

[@ropiljain3526]

Please solve this series

[@ropiljain3526]

Ya fir is series se related series btao

[@monicasaha2906]

n=int(input("enter the term:"))
a=1
for i in range (1,n+1):
if(i%2==0):
b=a**3
a=a+1
else:
b=a**2
print(b,end=" ")

[@narendarallu4489]

for row in range(1,5):
for col in range(1,8):
if (row==3 or row+col==5 or col-row==3):
print("*",end="")
else:
print(" ")
print() but i m getting output wrong mam

[@AmulsAcademy]

for row in range(1,5):
for col in range(1,8):
if (row==4 or row+col==5 or col-row==3):
print("*",end="")
else:
print(" ",end="")
print()
1. in the if condition you wrote row==3 but you want stars at row 4
2. in the else part you need to include end ="" to keep the control in the same line.
print(" ',end="")
:)

[@Manishyadav-gt1ju]

Mam Hindi me explain kijiye sabhi videos kko please

[@aniruddhadeshmukh3571]

Not working for this

[@tarekghosn3648]

or miss

[@rajeshwariyadav24]

I m getting output wrong

[@AmulsAcademy]

Give me the program please :)

[@rajeshwariyadav24]

Ohh m sorry actually my mistake I give a space after end=" " that's why

[@rajeshwariyadav24]

Thankyou so much ma'am 😘😘

[@DheerajKumar-yk3yl]

It's not working

[@AmulsAcademy]

Give me the program i will check :)

[@DheerajKumar-yk3yl]

@@AmulsAcademy
No thanks madam I recognised the mistake I had done.once again tnx for responding mam