Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with ...

SUBTOTAL function in Excel full tutorial. 👉 Take our Excel Course: <a href=" 🆓 DOWNLOAD Free Excel file for this video: <a href=" The SUBTOTAL function in Excel is a better alternative to functions ...

Struggling with a problem that seems to require trigonometry? This lesson shows how to solve it without using trigonometry, using two easy methods anyone can apply. With clear logic and step-by-step ...

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Learn to simulate stock prices with Excel and gain predictive power over market trends. Our step-by-step guide enhances your ...

a missing side in a right-angled triangle when another side and an angle are known. a missing angle in a right-angled triangle when two sides are known. In these formulae, the Greek letter θ (theta) ...

Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Learn to calculate the Sharpe Ratio in Excel for insightful investment analysis. Our guide will help you assess risk versus ...

The true meaning of “flexible realism” — abroad and at home. By Linda Kinstler Doctors ruled out a heart attack, but the patient had a sense that something was very wrong. By Lisa Sanders, M.D. A ...